You earn them when people click the purple treasure box below your avatar. It's a reputation system, people will click it if they find something you posted useful.
Hey there, 51m0nn! We already have a thread here that will hopefully help answer any questions you have about the gems: >http://www.everypony.com/forums/showthread.php?2216-The-Rep-System However, right now, there is the topic of discussion about the potential alteration or removal of the system: >http://www.everypony.com/forums/showthread.php?2541-Reputation-and-it-s-Flaws Just in case you are interested. I'm closing this thread only because there's a thread already addressing this question and, due to some recent debates on the future of the reputation system, I'd rather not run the risk of a second topic of debate or discussion on it. ^_^ ~ Locked ~
