Yeah, the 15 post rule is just for safety against spammers/bots and such, though I'm sure you can hit that amount today really easily since there's so many threads to post in. n_n
Hopefully you've been enjoying yourself here so far, and a hearty welcome to you! I'd recommend the DCC sticky in Other Chat & Discussions if you'd like to get to know the members here; it's a very active thread that's posted in many times daily. But other than me spoiling it for you, look around and get to know the forum - you'll definitely find places you like!
Have fun around here and don't forget to read the rules of the section(s) you're planning on posting in. I'm always available if you want somebody to talk to, as well. :3