I'm dramatically changing the way that photos are stored and accessed on this site. You shouldn't see/notice much difference, but this is a heads up just in case you do. Until I get all the old photos migrated, both systems will live side-by-side - and you might see that some photos have different URL structures than others.

A side effect of these changes is that profile photos (i.e. avatars) are no longer restricted to 100x100 pixels or less. They can now be up to 150 pixels, but it doesn't matter because that just happens to be the size that we scale all of the photo thumbnail images to. So you can upload any picture (within reason) and we'll just use the thumbnail for your profile.

How much space you can use for photos is dependant on how many points you've got. All members start off with enough space to upload a few pictures. If you want more -  you have to earn it.