It is clearly the same person. And yes, he's actively trying to drive away people for disagreeing with his politics (and/or correctly predicting the presence of neo-reactionaries in a conversation, based on past experience). He also seems to use multiple sockpuppets for upvotes, although I suppose lots of people could just be functionally illiterate.
Giving him a "second" chance seems like a clear failure at reflective decision theory. The punishment should discourage the crime, not just stop the crime. So far it's done neither.
No doubt Nier believes the whole "Cathedral" has defected against him - but unless you think he started out responding to some credible abuse on LW, I really don't care. His beliefs are not Bayesian evidence.
Why is it clearly the same person?
Another month, another rationality quotes thread. The rules are: