Complaint / review text:
I have tried thumbtack for a few months and bought a package of $85 ($1.50 per credit) credits. After bidding to several requests I have got 0 replies.
Unfortunately I have just found out that Thumbtack allow any person send inquires by using only an email and a name. Thus Thumbtack doesn't ask enough information to verify people. For example a compulsory phone number and address.
Each request will generate an inquiry that other 5 professionals will bid. So assuming that each bid is $10, Thumbtack will make a profit of $50, whilst each professional will waste their money.