Geograph - photograph every grid square

See "I've spotted a mistake. What should I do?" http://www.geograph.org.uk/faq3.php?a=30#30

[PERSONAL OPINION OF THE AUTHOR] Geograph takes pride in taking care about accuracy of location and information content. We like to think that this sets us apart from many other picture sites on the internet.

Whether it is one of your own pictures or someone else's, if you think something's wrong, please use the 'change image details' or 'suggest update' link under the main picture. This gives you access to a form where you can amend any of the details (subject and camera position, view direction, title, description etc). After making your changes, leave a short explanation in the box at the end of the form.

Changes to your own images will update immediately. The only exception are changes to the subject grid square, which are moderated; this will typically take a day or so.

If you suggest changes to someone else's pictures, they will be alerted and have an opportunity to reply. Ideally, you should work with the original contributor to come to a consensus. Moderators will try to assist with that. Generally, accuracy is taken very seriously, but if additional information is presented, it is the photo contributor's prerogative to decide whether to accept it.

When making a suggestion, please bear in mind that you are communicating with the original author, not primarily with Geograph. Explain your changes in a friendly and civil manner, and supply sources to verify your point. Avoid making many suggestions to the same contributor at the same time.

Suggestions which are mainly concerned with geograph/supplemental* classification or seek to move positions by small amounts within the stated precision (often 100m) are regarded as a waste of time by many and can cause aggravation out of proportion with their usefulness.

* (From 11 May 2016 the Supplemental Classification is replaced by Image Type Tags:
see http://www.geograph.org.uk/article/Image-Type-Tags ).

This will depend upon how many moderators are active and the rate at which images are being submitted. It can vary between a few minutes and a couple of days.
Occasionally technical problems can lead to the suspension of moderation for brief periods. This may be announced in the forum.
You can view your recent uploads, moderated or not, via your Recent uploads page http://www.geograph.org.uk/submissions.php (link in the side bar) or from links on your profile page http://www.geograph.org.uk/profile.php (link top right of most pages).

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.

Shortly after moderation, but NOT for Supplementals, your photo will clearly state that it has earned a T point.