It is possible to earn on this service, but it requires a significant financial investment. I tried to sell my articles for a fee, but when I attempted to list them for sale, errors occurred. I was willing to accept this the first three times, but not after that. No program, including the spelling and punctuation check services on Advego, found any errors. However, the administration claims that there are errors. The mistakes they point out seem contrived, as their comments are illogical and clearly aimed at creating the appearance of problems. They pointed to the same sentence, and when I removed it, they suddenly found other errors that were also nonexistent. When I contacted technical support, they began to defend the administration, claiming that the program might miss an error, but a person might catch it. However, all the serious organizations I have worked with have always asked to check texts using reliable services. I have been using such services for many years, and they have never let me down. The human factor matters. This site, however, tries to convince that programs make mistakes, but their employees do not. Everything would be fine if it weren't for the phrase: "If you want to list your article for sale without errors, use our proofreaders." That's when I realized why they find errors where there are none. In the end, I do not recommend listing your articles on this service, as the investments will be greater than the earnings.