I look at rv park reviews as well and even have a thing where the latest reviews are on my main page of my site. A problem I see with "campers" giving a number rating is that there is no consistency in how it is done. Someone will give a low rating because there is no wifi, when there is no mention of wifi in the listings. I would much rather read what the people actually say about the place. I would like to see a system somewhat like eBay. Approve, disapprove and a place to give your synopsis. Make it member based to GS members only. Have a GS department that reviews and monitors these (sorta like Marcus' Rapid Response Team) and can step in when needed. Perhaps fix or correct some issues. Monitor when a GS member abuses it and can remove the feature from their account or suspend it for a period of time. Only one review per park per year or another given time, unless an issue develops. Maybe they can just send it directly to the GS team then.