Of course your stock sway bar limits your suspensions travel, that's it's job.  So it's only natural to do someting about that to get the most out of your rig off-road.  I've owned a few Jeeps, and never really got the point of the Anti-Rock.  Sure, it sounded convenient, no more crawling under my rig to pull pins and tie things up our of the way.

I've run into a person or two who have been a little confused by the trail rating system that we all take for granted.  It's a topic that can be slightly confusing, mainly because not everyone follows the same scale, and trail difficulty can be a very subjective topic.  An "easy" trail to me, might be a nightmare to someone else.  In order to level the playing field, and make sure that everyone can pick their trails on the same scale, we need a common set of ratings.