These people are arguing for their own desires more than anything. They want an FSF they can feel good about, not this one with a flawed person producing the software they can't give up.
If he doesn't sit well on a pedestal, push him over and set someone else there.
No, they are coordinating a character assassination campaign and are pressuring everyone to disavow him. It's disappointing to see people cheering mobs on, just because they seem to attack "bad" people, while forgetting that anyone can be made to look bad.
No; rms is gross and creepy because rms is gross and creepy. Not because some conspiracy has worked to make him look like he is.
Even if he were gross and "creepy", that's no reason to oust someone from the organizations they helped create and destroy their reputation with absurd unverifiable anecdotes, like the ones about plants or vi. Or the note hanging on the door, which was likely a prank.
Creepy is also a meaningless word, best associated with ghosts and monsters, not people. Nowadays it seems to be used to criticize awkward male courtship attempts, as if trying to romance someone isn't tough enough and those that don't know how to do it have to be ridiculed too.