> But there's something about the negativity and criticism here that grates on me more than on other sites.
Honestly, I have had the opposite experience. Everyone here seems focused on getting work done and making great things, yes, but the little criticism that I do see is always well thought-out and explained. Instead of it 'grating' on me, I value it highly, because it's almost all of excellent quality.
> I think people here tend to assume that [...] to be an empathetic and emotional person puts them at some sort of optimizational and productive disadvantage.
Who? That's a foolish viewpoint that I cannot believe anyone here would hold. I haven't run across anyone who seems like they subscribe to this belief — have you?