Geograph - photograph every grid square

The Geograph search only retains you most recent 35 searches (unless you [save a search]). As you add more searches the oldest will drop off the list.
You can [save a search] by clicking the yellow hollow star to the left of it on the list - the star fills in and the search terms are then shown in bold. To [stop saving] an individual search, click the star again and the search will drop off the list like any other unsaved search.

The Geograph search only retains you most recent 35 searches (unless you [save a search]). As you add more searches the oldest will drop off the list.
You can [save a search] by clicking the yellow hollow star to the left of it on the list - the star fills in and the search terms are then shown in bold. To [stop saving] an individual search, click the star again and the search will drop off the list like any other unsaved search.

These are searches which have been done on your computer on other websites. They are stored in your browser and you can remove them by clearing the search history. Methods vary with browsers and operating systems - Google can probably help.

Use the 'Upload a larger size' link on the photo (or edit) page and submit the size you want (or select the preferred option on the page). This will overwrite the original selection although there may be a brief period when the originally selected size will be available due to caching and the wait before approval.
Be aware that if the very large version has been on the site for a while it may already have been downloaded from the site as a CC licensed image.
Note: if you did not want to license a larger size at all you will need to go through the same process but using an image marginally larger than 640 pixels wide (641 is enough) in order to remove the larger size options.

The subject list is intended to contain broad categories of subject rather than specifics.
While you can add new items, anything very specific is likely to be changed to an ordinary tag i.e. the prefix 'subject:' will be removed.

It is not possible to replace the image on the photo page but you can upload a larger size version of the same image with different/better processing and note the fact it exists in your description.
We are reluctant to remove images which have been on the site for a while (no telling where they have been linked from) so this is the preferred method of adding a better quality version.

If the image has not yet been moderated go to the 'Change image details' page and click the [request rejection of this image] button, explaining it is the wrong image.
On a moderated image, open the 'Change image details' form and, in the box near the bottom of the page labelled [Please describe what's wrong or briefly why you have made the changes above...] ask for the photo to be rejected and give your reason. Don't forget to click the box marked 'Bring this issue to the attention of a moderator' before clicking [Submit changes].

Accounts cannot be deleted - see this answer http://www.geograph.ie/faq3.php#103

If you have submitted no photos the only way anyone can find your account is by trawling through every account number - in November 2015 there are around 122100 of them.
If you are still concerned about your name or email address being available you can edit your profile to anonymise your name and introduce an error into your email address (which is not visible unless you have set it to be so).

You can certainly link to any relevant website in the description of your images. However, if the description and link look too much like advertising may be removed or modified by a moderator.

Short answer - please don't!
Editing out what is there by stamping another part of the image over in order to produce a 'prettier' picture is not what Geograph is about. We aim to record what is there, not a prettified version of it.
If people happen to be in your photo and you think they may object to the image appearing on the internet, consider if you are prepared to deal with any objections they may raise. If not, best not to submit. That said, I can only recall 2-3 images being removed from view because of objections raised by people (known to the photographer) who appeared in them - in the 11 years since the site started.
Some submitters do blur out legible vehicle registration plates. Opinions vary as to whether this is necessary or desirable but it is not a reason for rejection if subtly done.

Using this form https://www.geograph.org.uk/snippets.php tick the 'Only show my descriptions' box and add a keyword then click [Find] - there is a delete button beside each result.
If you find more than one description with your search ensure you pick the right one.

Short answer: you can't. But please read on...

You can't revoke the Creative Commons licence you have given The World when submitting your photos, and we would like to ensure as best as we can that you continue to get credit for your images wherever they are used. If you stop submitting, your existing photos remain visible and credited to yourself for this reason.

If you would prefer no longer to be identified as the photographer of the photos you have uploaded, you can change your real name in your profile http://www.geograph.org.uk/profile.php?edit=1 to show a pseudonym, or you can ask us http://www.geograph.org.uk/contact.php to anonymise your account. In either case, your decision is reversible should you change your mind - which of course we do hope!

Yes, it is still possible to change the category on older submissions but why not embrace Tags?
The old Category system is no longer available for most contributors on new submissions and there is a plan to remove Categories and replace with a tag. You can add tags to images which already have a Category and this may be a more useful exercise.

The simplest method is to overwrite the large version with a smaller one.
This only needs to be one pixel larger than the displayed image (641 pixels on longest side) but can be whatever size you are comfortable to licence for reuse.
Just click on the link [Upload another large version] and follow the steps on the page.

This process works best on unmoderated images as these will not yet have been picked up by others (wikimedia, British library, site visitors etc). We cannot guarantee that images overwritten after moderation will not have been copied elsewhere before being replaced.

Once you have pressed the "I agree" button your picture is in the system and subject to the Creative Commons Licence.

If the picture has not yet been moderated, you can requested for the image to be rejected, and you will be asked to give a reason. To "self moderate" in this way you click on the "Change Image Details" link under the picture: you should see an icon for "reject".

Once the picture has been moderated and accepted you will probably need to give a very good reason for the image to be removed from display. Images may be removed from display if they were taken illegally, or, for example if a landowner objects to a picture taken from a place without public access. This process of removing from display is sometimes referred to as "vaulting" as a copy of the picture remains in the "vault": a file storage area.

See also "I have licensed an image larger than I intended, can I remove it?" http://www.geograph.org.uk/faq3.php#93