Correction:

And in another Permathread I've had my comments selectively deleted in a manner that I consider results in an inaccurate conclusion.

I should mention that in that case I wrote a post to that Permathread asking that all my comments on that topic be removed if some of them were removed. However, that post was also deleted. At that point I wrote the Permathread editor a pm indicating that I would no longer post to that Permathread.