I'm not dedicated enough for raid progression and most hardcore guilds do make me angry. I used to have a lovely close-knit guild that did weekly 10mans back during Burning Crusade and the beginning of WOTLK. Unfortunately most of those people have quit the game or left the guild, so I mostly just come for the new content and to level alts these days. I don't have time for raids either - it would probably just end up being a stressor rather than a hobby.