Guess I should consider myself lucky, I have had great experiences in League/Club play and even the majority of the tourneys I have entered and played. Lots of good people, open and friendly, and even willing to help out with advice when asked. I found League/Club play to be the most relaxed setting, as it is random doubles and you get paired up with someone new almost every week. Also chill enough to ask questions, seek advice and even heckle one another from time to time. Very happy I took the plunge.
Same goes for the majority of tourneys, from charity events to ice bowls, to sanctioned PDGA events. Only encountered one semi-rule nazi/passive aggressive gomer who felt the need to point out every rule (real or made up) in his mind to others in the group, but didn't call anything until he was behind in the 2nd round. Oh well, they can't all be cool and the gang right?