Ban Xah Lee
This page is a short collection of online communities that banned me, in a way that i don't consider just. It illustrates the power struggle nature among the tech geeking males.
Harassment by John Bokma
I was harassed by a newsgroup poster John Bokma (a regular of comp.lang.perl.misc) to have my web hosting service provider kick me off. This happened in 2006.
Summary: I was posting relevant but controversial opinions in a rude manner to “comp.lang.*” newsgroups. I was using Google's newsgroup service to post it, and has nothing to do with my web hosting service provider, other than my signature containing my website or links to relevant articles on my website. However, this guy digs up my web hosting provider, and lobbied people to send complains to kick me off.
Detailed account: DreamHost.com and A Incidence of Harassment
Wikipedia
Freenode IRC Emacs Channel
I'm banned on Freenode's irc emacs channel since about 2006-10, and the ban was never lifted as of 2009-03. The ban is primarily, and single-handedly executed by John Sullivan (aka johnsu01).
Some detail: Freenode IRC Emacs Channel Ban on Xah Lee .
Hacker News
There are other trivial bans that i consider admin abuse. This page lists the more notable ones.