This site decrease people earning from 15$ to 0$ suddenly without any explanation. Because they must pay if people reach $40. So yes they would try to drop people's earnings from $10-15 to 0. And many times new day, the earning would become 0 again. Very bad website, looks like it scams people.
I wonder even if there is really someone who get money from this site, it must be working for the site. The site looks like changing a lot of names with same pattern but still the same, ask you earn 40-50 then not pay.