It's my mountain too, so restricting my access on any day for any length of time grinds my gears. You should also see all the trash left behind on the roads after the "spectators" depart.
Bikers also need to learn how to ride single file, not 10 people wide on main roads like Foothill and Baseline Rd. Cars dont get to drive 10 wide so we can all have conversations while we are driving neither should they.