Blackface is a bit more complicated and disturbing than “pretending to be like a black person for comic effect.” I don’t think it’s appropriate to compare it to to depictions of nerd culture.

It’s what stupid people think smart people sound like. I’ve never been able to watch it, but I remember hearing Sheldon brag about Ubuntu being his favorite Linux distribution? Like, can you imagine someone saying that in a room of Linux nerds?

It’s stupid and disrespectful to geeky people, but it’s not perpetuating harmful and violent narratives.