Tests are used by upwork freelancers as a way to stand out. Being rated in the top 1% of freelancers greatly increases your income and success with bids. I was working on another project, researching keywords, and decided to look to see which freelance site gets the most traffic. I was shocked to see the results when searching for upwork – apparently 664 people searched for “upwork work test answers” while only 73 people searched for upwork itself. That doesn’t leave me with much confidences in the platform.
Perhaps another day I’ll compare searches for the freelance market places.