There is a guild there, yes, thought not many people are on that often, or at all. I sadly don't have much if any time for GW1 anymore(hence why I made this last call thread), but I do still have some items and stuff that could be used towards helping you get some of your unlocks. Such as Zkeys, a couple unded mini pets, and I think some elite armor mats.
As for it it's worth only going to 30, that's really up to you. The reason I say 30 is because after you reach the 30th unlock, there are large gaps(as in 4 unlocks) where you get nothing, with every 5th unlock getting you a new title up to the 50th unlock. The titles are 35 "Ghostly Hero", 40 "Flameseeker", 45 "Legend of the Mists", and 50 "Champion of the gods".
There are no items or pets after 30, but there are still 4 titles, so what may not seem worth it to me, may be worth it to someone else.(But keep in mind just getting to 30 is a -lot- of work.)