Great website!! I did check out a couple RV parks I've been to and see what the site says. Buelleton, CA Flying Flags rates 4 stars while Pechenga RV in Temecula, CA ranks 3 stars. Neither has any reviews. While both parks are very good decent parks, Pechenga is WAY above Flying Flags. The latter is a campground type park, gravel roads, simple but nice. Pechenga is a big rig upscale RV park, wide spots, grass between them, paved roads etc. I think reviews are subject to what a person likes and where they have traveled. I think a better method of star rating would be similar to hotel star ratings. Has nothing to do with reviews but rather the type of park, amenities etc.
For example, A 1 star RV park would be a dirt or paved lot, no trees, basic pool, just basic essentials. Lost Hills, CA KOA comes to mind as a 1 *. 2 star would add hot tub and wifi but still very basic. 3 to 5 stars would add wider spots, more pull thru's, nicer pool, kids play ground, park activities, club house etc.