The thing that I really get annoyed with groups are the ROLEPLAYING. I mean really? Just because your not literate you cant join a group?! And then you have to send a ROLEPLAY REVIEW? What the heck?! It's annoying. Also, another annoying thing is that you have to have like certain PRESETS and ITEM PACKS and MASS MARKINGS.. Its annoying? What if you can't download them? Boom. Kicked. From. Group.
(Sorry for butting in, I just felt like I needed to mention this!)
The thing is, some people just prefer RPing with people who are literate, or at least about the same skill level as they are. Most of the time nobody really has anything against you- they'd just like more detail or the like. The RP sample is to tell if you're about the same level as them. There are plenty of semi-lit RPs around, you've just gotta catch em on at the same time. Same with the items/markings; most of the time you can't see some of the group's characters if you don't have the item packs.
Again, sorry for butting in, I just wanted to say that it's not supposed to be rude, it's just a preference. ^^
As for what I think is the most annoying? Definitely the fact that most groups rarely have people on. I don't remember where I saw it, but someone once said that a lot of groups are advertised as active, and then you get on, and... nobody's ever on. Even at the advertised most active times. Along with feeling excluded considering I enjoy playing loner-type characters (being somewhat of a loner myself), it can get a bit frustrating sometimes, like you've gotta fight and be lucky to strike up an RP. And even then, when people are online, they're RPing with others... Idk, it just bugs me sometimes.