There are several issues for newcomers on this thread:
1. Posting limits: There are already limits, 5 images/day for standard members, 20/day for premium members. As it happens, I can never get beyond 3 images/day without getting a a warning that I've exceeded my daily limit (image size mostly 50-70kB, rarely 100kb). Currently I'm being warned I've exceeded a limit of 9 images a day (last post 3 images 24 hours ago).
2. New members wanting to know how: there is an FAQ section. It might be a good idea to include uploading procedure there, and similar questions like those asked be some previous posters.
3. Suspected mass storage: On the forum home page there five random image links that are changed every time you go there. Frequently these are by members who have precisely 27572 images and 32006 comments. Is that some kind of absolute limit? Personally, I wouldn't want to use a forum for storage - my backup archive holds uncompressed fullsize images that I wouldn't want to have available for free access by the whole world. My forum images are compressed JPG that can only be further degraded if anyone decides to play with them.