Anyhow, as I said it's a shame this is happening, but I've seen similar situations before in MMO land. Catfud said it pretty well, and his point is certainly a crucial one in these situations. I saw a very friendly and casual WoW guild fall apart, because we tried to merge with a raiding guild. This was done because members were getting bored, and we needed more heads to try the "endgame content". Thinking we had found the right kind of "casual raider guild", we merged in an attempt to keep our good friends from leaving us. The mix of incompatible attitudes quickly brought the guild to it's knees - luckily, it recovered, but only after most of the real "hardcore raiders(tm)" were ejected
When it comes to casual vs. organised, there is usually some amount of friction. Myself, I sit somewhere in the middle - I always prefer casual play, and while I naturally avoid any kind of strict organisation, I can appreciate that certain rules do need to exist, if only to keep everyone happy and avoid in-fighting between members.
I hope you guys don't have too much trouble over all of this, and that you can move on and continue having fun in your own ways
