PeterKa
Ever wondered how Wikipedia gets rid of unwanted conservatives? They have it down to a science. Liberal editors will harass the victim until he reacts. Then they use his reaction as the basis for a complaint to Administrator's Noticeboard/Incidents (ANI). Established liberal editors rarely get sanctioned for harassing a conservative, the situation has to be resolved somehow, so the result is often a "topic ban" for the conservative. At this point, Team Harassment smells blood, and more people will get involved. They accuse the victim of violating the topic ban so he can be banned from Wikipedia altogether.
I can't say what exactly I did to tick off Team Harassment in the first place. I participated extensively in a forum called "requested moves," so many editors were aware of my opinions on a variety of subjects. My views on diacritics, climate change, gender issues, and the use of disambiguation all provoked emotional responses. But I was well-established editor with tens of thousands of edits, and I was able to outargue Team Harassment in several ANI discussions. It took a year-long campaign of harassment to get me banned. Every time I logged in there was a new post denouncing me for something or other.
Finally, my case went to an admin named Ponyo. She is apparently high enough in the Wikipedia hierarchy so that she doesn't need to issue warnings before blocking or follow the other procedural safeguards. She found a flimsy excuse to impose a a two-week block on me. Her note explaining the block referenced various incidents going back months, so she had obviously been recruited by a member of Team Harassment. After that, an ANI discussion could be held without my participation. There is of course a rule against this tactic. To keep bringing up the same complaint again and again is called "forum shopping." In fact, the discussion which resulted in my being banned consists almost entirely of references to previous discussions; It's almost a parody of forum shopping. In these previous discussions, it was decided not to sanction me in any way. In short, earlier harassment was used to justify more harassment.
Later, I noticed that several of the posts I made these earlier discussions were "oversighted" -- disappeared from the point of view of the ordinary user. Apparently, I had defended myself too effectively for the posts to be left in the archive. If you are interested in the play-by-play of what happened to me, check out my Arbcom appeal.