I think it's shifted somewhat in a US-specific authoritarian-left direction as that becomes a bigger force in US tech culture. I don't think people are more cynical than before, but it's expressed differently; the live-and-let-live culture has vanished under polarization and toxic positivity, and again I think that's a strongly US phenomenon. I also think that it's partly an explicit top-down shift, particularly with dang taking over and having an explicit policy that is anti- particular kinds of negativity even when that negativity is correct (e.g. telling people they're wrong is moderated a lot more harshly than before).