We will have to disagree to disagree on whether my claimed PA is "trivial". I think it's important to also consider the context.  This derogatory comment about me, that completely misconstrued my history, was made on a policy talk page in a discussion in which the contributor was not even participating. Besides, the opening sentence of NPA is "Do not make personal attacks anywhere in Wikipedia."  This is not qualified to not apply when the attacks are considered by some (but not the target) to be "trivial".  It's a shame that Wikipedia  has a written policy that so clearly takes a reasonable and very firm stand against personal attacks,  but that acceptance of such behavior as being "trivial" within WP is apparently fairly widespread.

All I did was delete a comment that was a personal attack per WP:NPA.  I've stated my reasons and will not repeat them, but I will review the arbcom cases you mentioned.  Thank you for bringing them to my attention.

You completely lost me when you said a way to avoid being banned from editing "bicycling topics" is to recognize that Wikipedia is highly political.  What does this have to do with "bicycling topics"?

If there are complaints about me alleging that I'm "carrying out a campaign of activism by pressing too many extreme interpretations", I would like to know what they are, what the basis for the complaints is, and who is making them.  Thank you again for your concerns.