I quit my membership to Rubmaps this month. I checked and there were close to 50 reviews in just the Denver Metro Area. Sometimes, there would be 6 or more in just one day. Pretty much all fake. I think the Rubmaps management is actually the ones seeding their site with tons of bogus reviews.
So, I'll stick by this site, even though the number of reviews has dwindled. At least they are more likely to be real.