dos mitigation that likely won't fully work but let's see anyways.
backstory:
byond's ban system will automatically ban world/Topic flooders. Sadly updating byond's internal ban list causes isbanned() to get called on all connected clients. Also sadly: it does this every time it sees the world/Topic flood on the same ip, causing every connected client gets checked repeatedly for every flood message world/Topic sees.
ecd2622a75