I have an idea! If Lancestar derails a thread, we can ignore him by immediately making a break on the page between the fight and the continuation of the main topic. So if we're all talking about a game we're planning or whatever, and he comes in and starts insulting people, then all we have to do is copy and paste this:
And then we just continue on with the conversation as if nothing happened. It will get the message across to him and effectively clear away his posts by separating them where people are less likely to read them. Plus, it's really cool. If you ever want to do this, you can copy this from the second post on my Wolf's Den page, where it will be in a spoiler as above.