FoF Gamification is an extension that allows you to vote up or down on a post. I noticed that people weren't using it for its intended purpose--some users would only upvote themselves to advance on the leaderboard, and some users would only downvote others' entire post histories.
Instead of using upvotes and downvotes, I'm reverting the system to the simple Like system. Likes used to be moderator only, and as such they would give you 50 coins. Now, anyone can like a post, but only one coin is given at a time.
