Flag abusive users
I've noticed a lot of users get confused on the proper procedure to report a problematic users (sock-puppeteering, cheating, etc.). Example
Unfortunately, the site's procedure right now is to flag's a user's answer/question:
Sometimes, nothing is wrong with a particular post, but there's a problem with the particular account itself therefore it seems unnatural to flag an answer/question.
The solution is therefore simple. Allow the user to flag an account for moderator review the same way you can flag a post. Add a simple flag button on the user's page. This would solve most confusion right now on how to report a problematic user.