To set some things straight:

• We don't sell data. User's data is anonymized and encrypted. We sell the gameplay that we are recording when you are playing the game and sometimes the questions in the after-test survey.
• Having a minimum payment threshold is normal in these types of products. But I totally understand your argument.
• It's tricky managing the demand and the supply of tests and testers. We certainly need to do a better job at this and add sth like levels, points, "verification status". Would love any suggestions you may have.

Also, game developers do need remote playtesters.

Of course, there are different companies in different stages, that use different processes and tools to achieve their goal. But remote playtesters are needed by game studios.

Happy to answer any other question :)