I'd say being a Heyurian (or Heyurizen) means using the power of the internetz for good.
Heyuri is about as free as you can get without being a 'free speech' website, and the users don't take that as some challenge to post the most shocking content they can find or have never ending mad-ons for blacks or gays or whatever.
Heyuri is truly irreverent, not in that puffed up, confrontational way you see on 4chinz,and other imageboards that take after it, but in this wonderful way that leads to epic lolz and awesome porn and lots of great OC.
Heyurians are smart without being overly pretentious, politically incorrect without trying to prove anything, are silly,but can hold a real discussion if it's worthwhile, and are goddamned MASTERS of OC!
Heyurians are not self-serving or lazy, we don't recycle the same lame jokes that permeate the greater internet,we don't use variations on templates, when a thread is started that seems to benefit no-one but OP it gets ignored, or turned into something that produces lolz for all.
I think we could use a few moar users,(not many, that would kill Heyuri's soul), but Heyuri is already pretty astounding.

Basically being a Heyurian means winning the internet