First way: Be a troll and votekick the people trying to votekick you. This one's only if you don't care about how childish you will seem.

Second way: This one stems from an earlier thread on griefing and a wonderful word called schadenfreude, which describes please gained from causing others distress. Kaede-Chan pointed to this as a motive for griefing, but some other people objected and said that wasn't the case at all. Here's a chance to prove her wrong.

Enter a server hosting a map you wish to grief. I recommend the SuperCool building server, there's a lot of elaborate structures to destroy. Press [F1] to save the map to your computer.

Now take that map and host your own server running that map. Title the server something appropriate for the occasion, like "<yourname>'s Free Grief" and open it to the public. You may now destroy things for the sheer hell of it without causing anyone else undue distress. If you host with PySpades, you can godmode people so that they'll never run out of ammunition or grenades, for a really fun time breaking stuff into small pieces.

Somehow this has never caught on... which is why I agree with Kaede. Still, the idea is out there, so if you ever really just want to blow stuff up, there is a way to do that without being a complete jerk.