I am an admin on a community site with some 8k people on it, 400k posts since 2012, and have seen it all 
We had one guy, a German, Ipad, 16hrs/day online, generating ~2k posts per month. He was banned eventually but came back, eventually creating about 15 characters, one of which was a woman
We had one guy, a German, Ipad, 16hrs/day online, generating ~2k posts per month. He was banned eventually but came back, eventually creating about 15 characters, one of which was a woman