Some people go on this forum and just look at new posts and comment with no clue what they are commenting about. It would help if people put something about Mexico in their topic so the others will not read it. Of course there could be trolls too. To may knowledge the app they mention does not work in Mexico - wish it did. Our best website for other RV places is rvparkreviews.com - that being mostly US but there are reviews for Canada and Mexico on there.
Unfortunately, the privacy risks on Facebook - their seeming unending vulnerability to hacks - make the risks far to great to ever visit any Facebook site so Kevin & Ruth are out for us - though we can email them with questions.