A waste of your time
1. There are way too many testers in thier community compared to the work they have. Consider yourself lucky if you got even one project per month. Some are waiting more than a year without any invitation.
2. Most projects do not allow you to use VPN. If you do not belong to that country, they will ignore you.
3. They have a tier system for payments. First world countries get highest payment and the rest are low. This is blatantly discrimantory and never observed this anywhere in crowtesting.
4. Project managers prefer experienced testers or thier contacts. The willingness to give chance to new testers is just not there.
5. They gloat that they pay by the hour. Lets say they assign a task which can only be completed in 3.5 hours but they will alott it as 2 hour task. This is very exploitative and sinister.
6. There is no bonus and no overtime.