I'm interested in joining a guild where the members have an open mind and are tolerant of all playstyles. I want to avoid people who continually state what they don't want in the game and make it their life's work ensuring no-one else gets it either. If what you want to do is pick flowers and stand in front of a crafting station all day that's great, I'll send you my commissions regularly. If you just want to solo the entire way while having the resources of an experienced guild behind you to draw upon that's fine too. However, people who criticise others who want to maximise their performance or rush to cap need not apply. Similarly hardcoe players who belittle the achievements of others with less time available to play can take a hike. A community of like-minded people exploring game design and bringing creative suggestions to the forums for rational discussion.
Tolerance in an MMO. Now there's a pipe dream.