Make the Specific Rioter who Deletes your Thread Public
Simple. It seems to me that there is at least one rioter who deletes threads that are in their proper location. When a rioter deletes our thread, we should know who deleted it so that the data can be pooled together and you learn who to fire for making you're already shit boards an even less welcoming environment.
also, why not just move threads? you say blahblahblah extra work. But let me break it down to you. You write code for moving a thread. They hit move, a drop down list pops up with all the sections, they click on the one that it goes to. viola for the price of one extra mouse click and a few hours of writing code you have successfully pissed off/irritated/annoyed/made feel unwelcome 200% more people.