How exactly do you get them? I have 4 now and have no idea how I got any of them lol. Does anyone know?

You get them for posting on the forums -- I'm not sure of the exact amount of posts per star, though.

maybe 500 500x4 is 2000 and we both have over 2k forum posts. oh but thank you for letting me know :D

This question is already covered by one or more threads in the "Useful Help Threads" sticky.