I'm surprised to see the other post closed. It certainly grabbed my attention but personally I didn't find it offensive.
so
1) possibly but why? oversensitive reaction to the word which in itself is not a bad word.
2) nope but all it takes is one mod who doesn't find a topic appropriate. Still, in Letting Off Steam there was no reason to censor this in my opinion.
3) that never stopped a lot of other discussions to develop before they were closed.
I think it's a pity we don't get to hear people's point of view on the original topic which leaves me completely baffled. Having not seen the original documentary I can't offer any alternative reason for the censorship.