@cypnk The same thing goes for all sorts of dismissal. I can't even remember all the veg(etari)ans that dismiss everything I say just because I'm a farmer and therefore I'm obviously in the pocket of ConAgra or Monsanto or something, or repeat the old saw about me being unable to understand something because my pay depends upon not understanding it ....
I guess it's fine to explain to newbies online, but to me it's just another day on the internet.