So this is interesting:
https://tempeyimby.wordpress.com/
I've been waiting for a local "Yes In My Backyard" (YIMBY) group to start, and Tempe appears to be the place. I'm not sure who's behind this, although on the "join" link there's a notice saying the form was created at ASU.
I checked in on the militantly anti-development Maple-Ash-Farmer-Wilson Facebook group to see their reaction, but the members appear to be too busy debating recent police controversies to have noticed.