I sent a review to Thumbtack. It was a negative review about someone on their site selling audio video installation. They asked for backup to prove that I had done business with the person. They said I had all the time I needed. After I submitted the information, I was told it had to be done within 48 hours and they refused to post my review. Obviously, the person in question pays Thumbtack money and I do not. Thumbtack is a joke and just caters to those that pay them money.