There really is no point to PUG's. This isn't a MMO where you hop with PUGs for a dungeon or 2. You're putting in 50+ hours into a game. They might not like what you're building, maybe they're waiting on someone else.
This is a co-op game, if you want a PUG, then post on steam forums or here to find like-minded to play with, or play with your friends that might be interested. Should never rely on PUGs.