From what I can see providers can get negative reviews removed from RM quite easily which is unfortunate.
I've had a provider confirm a meeting twice, only to cancel with no explanation. In fact, he didn't cancel, he went silent around the time of the meeting when i had arrived near his place. he messaged the following day saying he was busy! Pointless leaving a review on RM as I'm sure it would disappear again very quickly 🙄