Honestly don't really understand why people push the stay limits since it only makes thing worse for all boondockers over the long run. I can understand a few extra days here and there, but there are far too many folks who push waaaay beyond the 14-day. Eventually someone complains (or the rangers get wise) and then it ruins the spot for everyone.
This reminds me of the crack-down that happened in Coconino & Prescott National Forests a few years back. Bunch of folks were staying months on end and completely disregarding stay limits. Rangers finally got wise, cracked down hard, and now many of the roads/sites that were previously open to boondocking are completely closed down. Shame for us.
Our tanks are usually getting full at the 14-day limit so we move on. If we wanted to stay longer in CA/AZ we'd buy an LTVA pass...that's what it's for, after all.