When i changed my profile picture and came back IT WAS GONE! IDK IF THIS WAS A BUG
MABY MY ACCOUNT WAS HACKED 
Profile pictures don’t save. They’re stored in a cache until you sign off. That way, no memory is wasted on storing images.
Hey Super Creator, this was actually a bug in the Vanilla Forum software that powers this forum. I have just fixed it (I believe), so the avatar pictures shouldn’t be getting deleted any more 
Th grazer! It would just keep deleting my picture!