Hmmm, yeah that's kind of my attitude but recently I've noticed a lot of trail maintenence going on and an increase in "trail ettiquite". Apparently you are naughty if you ruin the trail by riding after a rain. I don't want to be rude and violate any unwritten MB laws but at the same time I think the big knobs on my tires do a fine job of flinging mud and I hate to deny them this when they seem to enjoy it so. I hike also and am aware of the LNT ethics involved with that activity. I guess in an area with a larger MB "community" there are more clearly defined rules.