Requestor checks your answers and evaluates your skill — your ability to complete a certain task type. Skills are evaluated on a scale from 0 to 100 points. You can view your skill level on the profile page.
Skill levels also allow the requester to offer tasks to users who do a good job. The more skills you have and the higher your skill levels, the more tasks you will have to choose from.
Requesters may set the task price in accordance with the skill level. The higher the skill level, the larger the reward you get.
If you don't do well on a certain type of task, you receive a low skill level. Over time, you may stop receiving such tasks.