Lord knows I often find myself wondering why on earth people complain about some of the things that I read here on the forums, but one of the issues that I believe needs some serious improvement is the attitude of the players.
Case in point: I join the lfm of a guy, we'll call him T, which said only "epic orchard". I'm in GH, so I start running toward House P. I'm almost at the entrance to the orchard and I ask "you doing s/r/e or quests?" in party chat. I asked it only so I'd know what to expect, and I've joined similarly-worded lfms before thinking it'd be s/r/e and the party was doing the quests.
Next thing: ding, "T" dismissed you from the party.
The kind of move that is starts with a "d" and it's no wonder players would rather not group when people are going to act like that.
Anyway, there's my tantrum for the day. Thanks for wasting my time, "T".