I think you're an INTP. You don't have that INTJ-ish vibe, and I've known a few INTJ message board admins. They usually do what they think is efficient and useful, and don't care what the members think. They also have significantly longer lists of rules and guidelines that they'll adhere to more strictly. On the plus side, they usually keep things running more smoothly on the server side, and preemptively fix situations long before they have the potential to become problems.
INTJ's in general give me an impression of being mischievous, diabolical, blunt, yet lovable strategists who are always striving to improve their systems. Their perfectionism, efficiency, organization, willpower, and foresight are rather endearing traits.
You're almost the opposite of this. You seem to prefer trying various things to see how people react to them, and then making further decisions based on this. You also seem to be the sort who doesn't like to take preventative action so much as corrective action once a problem has been identified. It's like you want to give both systems and people "the benefit of the doubt."
I'm not sure, but I'm more confident than I have been in the past, as you have been posting enough recently that I have a better concept of your personality.