Would it be acceptable on a social Website which features photographs of people to accept only JPEG uploads?
GIF animations are not allowed anyway since only photos of people are accepted. Also, all uploaded files are converted to JPEG thumbnails.
This would mean that for example PNG and TIFF would not work. But don't people have their photos in JPEG 99.99% of the time?
Does anyone have any experience with a similar Website, and statistics of what formats came in?