I was camping this weekend at Kalaloch Campground (pronounced "Clay Lock") N.P.S. and I couldn't believe the tent campers that were in spaces usually used by RV's. RV's were coming in thinking first c...
For all we know, those tent campers showed up a day or two or three beforehand, and have been staying there all that time. One cannot leap to conclusions about reservations.
Maybe all the tent-only sites were taken when they arrived, so they paid the extra for an RV spot so they could stay in their preferred CG. No harm, no foul.