User blog comment:Oioiaussie/Can't say how excited I am/@comment-5626292-20121115135129/@comment-5415332-20121116073702

Some kind of crystal reward or special decoration.

For example:

level 1-10: the current reward

level 11-15: 5000 coins - 5000 XP

level: 16-24: 2 social coins

Level 25: Special decoration, like a big heart

level 26+: 5 crystals