DMobley,
I've been out in TP boondocking the last two years and one of those times was in August while the Rzr meet was going on. I was a bit worried about being there while that Rzr meet was happening but my plans were set and couldn't be changed.
During the meet, the RV park and cabins at the Trading Post were packed, the road leading north of TP reservoir had morning and evening trains of Rzrs going out for the day on their planned rides... but honestly, we rarely encountered riders on trail. Maybe it was the trails we chose as we were mostly on 50" trails but also did some open to wider SxSs. Still, my experience even during the Rzr meet was not the scenario that was painted in this thread leading one to believe major crowding. And, there was plenty of area for boondocking north of the reservoir with that meet happening. Most everyone involved with the meet stayed at the Trading Post.
Heck, I've encountered way more riders on Moab trails every time I've gone there.