[jmspool]

> I've seen NPS used as a way of keeping a pulse on a community; if it drops sharply, something is clearly wrong in a way that normal monitoring can't surface.

If this is your goal (and it's a good goal), there are way better questions than NPS to use here. I'd go with a simple "How did we do today?" question, versus the convoluted NPS mechanism.

[bichiliad]

Yeah, probably. It's the sort of thing where someone's going to want to know your NPS anyways, so if you're collecting that data you may as well break it apart a little. And by no means do I think you shouldn't be doing other sorts of user research.