Users test various services for performance, for which they receive awards from developers (not always). The work is carried out according to clear prepared instructions - there will be no need to think and guess how to test the whole thing. Most often you will have to swap tokens, add them to liquidity pools, check interface buttons, etc. In some projects you can make a profit by finding bugs. The more serious the jamb the tester found, the more tokens he will be given. The whole point here is that in the lion's share of projects, no one informs the size of the reward in advance. You have to do everything in the hope that you will be generously rewarded for the work done, but this may not be the case. And one more thing: those who promise rewards most often give little, and those who promise nothing can give a huge amount (or nothing). There is no need for investments here, unless you decide to make your own multi-account farm, which will allow you to increase your profit several dozen times.
Required skills: ability to follow clear instructions and basic understanding of cryptocurrency.
