@nixCraft I'm not so sure I'd call it bad behavior, as far as I can tell their bot respects robots.txt and looking at the one for the LM forums they don't have any crawl delay set or any restrictions on indexing so any new large crawler that finds the site for the first time would likely have the same effect, as anything indexing the site that hasn't before will just continue branching without any delay, google will nuke you like this too if you put a big dataset up and they index it w/o delay