Dungeons are tough, most people just want in and out. The general attitude seems to be "why would I talk to you? We will most likely never meet again." Not my opinion,but many others have stated this, piss poor attitude if you ask me. Trials seem to have alot more "community" if you will. Been doing some alot lately a bit more engaging than dungeons.

People just want their drops, tomes, gear, mats, or whatever from dungeons and don't want to talk. Its a sad reality, some will just blame SE for the design and not really remember why they started playing in the first place.