From the surface, this appears to be reasonably well structured as a remote and highly flexible work option that in many cases can utilize higher-level areas of knowledge or skills. The reality I saw through working with them for 3 months was widespread chaos, many irregularities in people getting paid as agreed at the agreed time, highly unpredictable availability of work in some of the projects, and many people being frozen or banned completely because of things like a very inaccurate algorithm deciding they had used AI to help with their task, or a spam reviewer incorrectly marking down their work, leading to low scores and automatic removal from a project or even the whole platform.
If you want to do research for a novel on the dystopian future where robots are our bosses, this would be a great opportunity. If you are simply curious and have zero actual need for the money or for it being a remotely reliable source of income, and won't really care if you get booted either temporarily or permanently for incorrect and robot-produced allegations, it could be worth checking it out. Other than that, based on reading the experiences of many coworkers in multiple different projects via Slack channels and my own experiences, I wouldn't recommend it to anyone at this time.