And it's not _that_ long ago since Linus was King of the arrogant and rude flame posts on what's effectively hos own "social media", the linux kernel mailing list.
10 years back, Linus _was_ "that guy". And it worked, extremely effectively, if you measure success by the ability to stamp on someone else's technical contribution by ridiculing them in public instead of making a convincing technical defense of his position in the discussion.
That is really an apt point. You can't condition people one way, and tell them to do the opposite.