What is the best way to implement a rating system?

Question

Ratings

There is a platform for clients where they ask questions to specialists. They wanted to introduce a rating system to see good specialists, such as top 10. A like +1 comes to mind, choosing an answer as a solution +10. And make levels, normal, pro, guru. Would it be right to set up a rating system like this?

Answer 1

The rating system will be correct, but at the same time make a distinction between the topics of questions (if any) and a separate overall rating.
So that you can track the general activity of specialists and highlight the top specialists in a particular area.

Answer 2

Correctly