What are you talking about? I’ve witnessed it several times now at work, especially regarding programming or EE. Have you not yet suffered through a programmer condescendingly explain trivial matters to others, especially to women?
The post is obviously a hyperbole but it’s not too far off from reality.
https://en.m.wikipedia.org/wiki/Wikipedia:Reliable_sources/Noticeboard/Archive_259#RfC:_Rateyourmusic,_Discogs,_and_Last.fm