UO is designed from the ground up (not just freeshard, but OSI too) to allow any one player to take down things by themselves. Games like WoW use a different system of "forced grouping" which I do not like and as a result do not play WoW. While I'm friendly and helpful in game, I'm a loner and prefer to do things by myself. I would really HATE to have to wait around for someone to log on that is skilled enough and interested enough to join me in what I want to do and get done. I've not followed up with recent OSI events so they may have strayed away from this, but if so they've strayed away from the formula that has made UO so great.
I can't help but notice you didn't mention whether you've done the Ice Boss.
....and yeah, the Chief is a bad mamma-jamma too. hehe