How much do u earn on these platforms ?!
Also - i find it ridiculous that they try to enforce non-external-communication with the people u hire. I want to talk to these guys 5 times a day, share repositories, etc. Its weird
I guess the convenience of having all of those potential contracts is a trade off with the fact that you are competing with everyone on Earth that signed up and looked at that web page. So people that have $100 rent in a small Indian village can and do bid extremely small amounts sometimes and they end up making much more than their friends in the village and are happy to have it.
The reason they try to stop the external communication is because people go outside the site for projects once they have made a connection with a client. To me it's questionable whether it should be legal to force people to do all transactions on your platform. But from a business standpoint it is the aspect that has the most impact on how much cut they collect.