This is slightly off topic - I get the impression Sqwiggle isn't "doge-fooding". Could be wrong, but that's the impression. I'm hoping to be wrong though.
Hmm what gave you this impression? In fact we've been using Sqwiggle daily since our very first prorotype :) Tbh I don't think we would get half as much done without it, we certainly wouldn't be as connected given that we're a distributed team.