People who write Google reviews on massage places often just cause the establishment problems. Some of them are deliberately troublemakers and if they go to a legit place and don't get offered extras then they leave a review saying that they did get extras or if they went to brothel/parlour they write about how nice the girls are and what they got up to. Anyone doing a Google search for the establishment's area will now see these reviews and they'll believe what they say. It can cause problems with neighbours and partner of the person that runs the place.
My suggestion is do NOT leave Google reviews if you go to a parlour or a massage place that does or does not offer extras. The reviewers also seem to forget that people can see their other reviews, so Bill has left a review of a sex parlour and then another of a restaurant he visited a week ago. They often have a photo of themselves too. It's just a dumb thing to do and it's so indiscreet.