Imgur hosts all kind of shit, they only remove it if it's published and against the rules of the imgur community.
If they don't want FPH in the imgur community, then that's perfectly fine. They've been hosting porn and other shit just fine, as long as it's not published to their community, including FPH content in the last glorious days of r/fatpeoplehate.
The real dick move was of
reddit Paodolf Hitler, banning the FPH subreddit. Other controverse subreddits, like SRS, cutefemalecorpses, coontown or watchpeopledie weren't punished, which make Pao Zedongs argumentation even less plausible.
So yes, imgur is full of fatties and slimgur secures our independency, but they didn't treat us worse than racists, necrophiles and porn-lovers.