I can't speak for the other sections, but most of the stuff in the Evo3D section is about customizing and accessories. And just general chitchatting. It stays pretty active and not a lot of problems solving going on. I keep up with the E4GT forum because I bought it for my son. The problems he has with his phone don't appear to have any fixes, other than I suppose rooting it maybe. Even after the last update, he still has the AOS problem, although it did improve. His gps is practically nonfunctional, assuming he can get a fix, it shows his position to be off by up to two miles. His call quality is pretty poor, regardless of how many bars he has, and the wifi reception is terrible. My wife and I have been using the Evo3D since release, and have had very few problems. Signal for wifi is always good, call quality is good, gps works great.
Honestly, I am still disappointed in the E4GT. It has so much good about it, but there is no way I would switch to it. My son still likes it OK, but coming from a BlackBerry, I would have thought he would be more thrilled than he is.
I'm glad this section exists though, even if it isn't terribly active. I'm no expert with android phones, and reading here helps me out a lot. Prior to my Evo, I was still using my HTC Mogul with Window. I know that when I DO have a question, someone here probably has the answer.
Remember the lurkers out there that you guys help, even if they never post.