I was reading at Thallen's thread and I just got a great idea for discourage selective sparrers.
First of all, remove all the current spar rooms, and make a huge single spectating room. The spectating room will look like a GST spectating room. The transcripted version will shown to people. If you que in there, it warps you to an available spar arena and this way it will be harder to determine your opponent. If you are boosting you will get caught. Because central room can watch every single spar room at once.
So how does the spar arena might look like? Like a event chance room, one admin room in the center and eight arenas surround admin room.
If you seperate the spectating room and the arena, it will make less laggy, easier to catch boosters and hackers might not be able to hack from spectating room. Overall it will make less complain about sparring?

I don't know! Who knows! :3