Farcebook is just such a swamp of inequity... I only use it for business-- wish I didn't have to, but I have a couple of pages with too much following to just abandon them.
Sometimes it's automated (generated by an automatic image search that somehow "links" content as controversial or somehow against FB rules) and sometimes all it takes is one unhappy camper to say "I didn't like what that man said!" and report it... and it's "ban first, ask questions later."
Sometimes, simply breathing makes you a terrorist. To someone. Somewhere. God forbid someone could be offended.