A few months ago I received a banning PM from Rob, aka Pprune Towers. I was struck by its rude tone and slam on me as an American.
For an hour or two I felt angry with him and very nearly attempted to retaliate with a reply written at his level. Then I realized this is a venue where he can push people around, and I think his psyche needs that. I decided to let him go unscathed.
He intrudes on my Ppruning only infrequently, and he can't be all bad, having been a founder of this site. I will take satisfaction in the fact that my continued presence on Pprune here niggles him, and be amused at his antics.