I actually found the “mean” people made way more sense and there’s a certain heuristic where you actively listen more attentively to the people being framed as “mean” because they’re often correct.
I find that is heuristic to be valuable and helped me get into a ton of things early.
So no, I don’t think it’s safe to say that for everyone “mean”people mean I’ll ignore that whole idea. Some are just the opposite: we look for where the a-holes are.