Yep, take Sardis as an example. We use to ride trail bikes around the lake. Both campgrounds on the lower lake were packed. No problem seeing 500 or more bikes any weekend.
But, things changed. Must be why the campgrounds stay empty for the most of it.
A cousin cranked his bike and popped a wheelie at the campsite. A ranger gave him a ticket for wreck-less driving. They packed their camp and went home. He hasn't been to my house since.