ReFlar's Gamification extension uses the same voting/like logic as Reddit, up-vote, down-vote, and the level of hotness of the topic based on up-votes and down-votes.
If you're looking for something that has similar logic to StackOverflow or Discourse, you will be a bit disappointed as ReFlar is planning on focusing on unique features in the near-future. But surely, we will entail the same practices of traditional forum solutions such as Vbulletin or XenForo. I really love features from each software solution respectively (such as user notes).
But if you're looking for something within a particular request, it is best to pay a developer for their time to dedicate to your needs. And if you're among the good bunches that wish to share the extension you paid to be developed, you will be highly praised for it among the community for making it publicly available.
Ex nihilo nihil fit my friend.