Yay! Your welcome. The hearts means that you have a good reputation. I think it's about your posting and your behavior. Be careful, if you get a bad rep, you get a skull. The points you earn them from good reps. Not bad reps, you lose points. You can also get your usertitle, not username can be changed in color. Go to the market and buy it for 15 points. Like my usertitle, is green. Well hope this helps.