They already weren't staying in their own subreddit and that is why they were banned. FPH would often post pictures of random people they saw in public to shame them. Or they would cross post something from a sub like /r/skincareaddiction or /r/makeupaddiction and then harass the OP based on their looks. Or the one time a woman posted in /r/sewing about a dress she made and that got harassment. Or when a couple met over GTA5 and that got cross-posted.

Examples of harassment and chronic toxicity that FPH has done:

Thread 1: An open letter to all the fat fats who may be lurking here...

Thread 2: Drama in /r/progresspics when OP's pictures get crossposted to /r/fatpeoplehate.

Thread 3: /r/fatpeoplehate is mentioned in a video by youtuber Boogie2988. Brigade happens on a comment he made in the the sub yesterday about his face.

Thread 4: Big girl on r/unexpected is compared to a planet. Comments are apparently gatecrashed by redditors from r/fatpeoplehate .

Thread 5: Redditor from /r/sewing posts pictures of herself wearing her new dress. Someone cross-posted those pictures to FPH and a drama wave happen.

Thread 6: This is a thread where a FPH user celebrates his co-worker's death

7: /r/fitshionvsfatshion: an entire sub dedicated to bullying how fat people dress and showing how it "should be done"

Thread 8: Here's a post where a FPH user posts a dead woman's photos to mock them

9: Here's a sub they made to make fun of fat people at weddings

10: Two users met over GTAV, one of them was fat! This led to /r/FPH brigading the sub.

Thread 11: FPH brigades /r/suicidewatch and tells a suicidal redditor to kill himself.