I would guess that the true point being made is that these people are not "being who they are," because someone else has caused them to "conform to [their] taste/style."
Your reaction is actually pointing out exactly the same thinking on their part as you're using to criticize it: hackers don't like it when someone has forced their idea of aesthetics on them--because hackers are, fundamentally, aesthetes--so we get vicariously offended when they see a trend of some group "forcing" their idea of aesthetics on some other group.
This applies even if that "force" is just the majority declaring some particular style to be "objectively fashionable." Hackers don't like the idea that things can be "in vogue", because it coerces their ability to self-style down set paths they might not want to have gone down. Even if they would have liked a particular style, having it be popular means it's no longer their creative idea to choose it--so it doesn't demonstrate their creativity, and that's all they cared about doing in the first place.