if a solo guild is an exploit than having a massive guild would be massive exploit if you think about it. One person doing the work of 50 people, vs 100 people doing the work of 50 people.
i wish the hole game was solo. so i don't have to deal with elitist in the dungeons. i don't play mmo's for the Chat Party, i play it for the content you don't get in most solo games. i would also like to see a solo stronghold because im not joining a guild for the same reason.