so I downloaded the gif of the video I'm messing around with, which took the filesize from 4 megs up to 70, and also added a bunch of really visible dither noise. Then I reuploaded the gif, and tested it in the embedded player, and it plays fine. Except that it obviously still has all that dither noise. Oh, and the mp4 they made out of the huge reuploaded gif is 11 megs lol imgur is a damn mess
for the record, the one I've been testing this stuff on is this:
good dog :)