IIRC, exercism doesn't really encourage completing things for points, and didn't especially heavily gamify the learning process. Copying answers really just seemed like shortchanging yourself when I was using it.
Doesn't that really depend upon the way that you treat the problem? If you're just looking to pass, what do you have to gain? This isn't a course in College.
If you don't know how to even get started, what do you have to gain from just being stuck?
When I started on the assembly track, looking at others code to figure out how to get set up for the first challenge allowed me to do the rest on my own.