I delt with this a lot in the video game industry when having co-workers participate in the forums (i.e.: game developers).

The solution is simple in my mind. Advocating that all community members including staff are held to the same community guidelines or rules is enforced including yourself. That means you are advocating that you and your real life friends will not break the guidelines and rules.

Your objective is to emphasize to your community that although you are the law, you are not above the law as Judge Dredd might say.

I know it's a tough deal because real life friends are involved. However, if you enforce this policy to everyone including yourself, then it may make it easier. Just remember, your community will respect you and your team more if they feel you are being fair even with your own infractions. It's also following the same principles law enforcement follows in real life when dealing with their own peace officers (ideally).