so i can say just the other side. ive been to freestyle.ch for, idk, 7 years now, and hes the only "top-level" rider i have ever seen standing around his sponsors' stand and talking to guys/giving autographs outside of those official signing sessions.
he actually talked to us for a few minutes, asked what were up to and was pretty nice.
and all the other guys are (at least i havent seen them) never around and just hang in the VIP tent.