FFXIAH.com

Similar to above mentioned pet peeve, another thing that grinds my gears is Bards and Red Mages that feel that because of their high demand in merit parties feel the need to act like God and treat everyone as inferior and that they can get away with virtually anything including but not limited to:

Going AFK for prolonged periods thinking they won't be replaced
Belittling others with condescending attitude
Complaining about exp despite being at least 15k+/hr
Leaving the party for virtually no good reason other than to look for a "better" one
Refusing to join a party because of a particular job they don't want to pt with
etc. etc. etc.