Some of the opers on Caelestia have something similar to what this is supposed to save you from. We call it the sajoin of death, and it\'s used as a more evil alternative to /kill. The user is first sajoined to 0 to clear their channels, then sajoined to thirty channels, and saparted from them all. This then repeats endlessly. mIRC can\'t handle that kind of constant input at once and disconnects to keep itself from crashing.
I should point out, however, that it is very rarely used, if ever, puts a strain on the network, and would probably result in the oper receiving a thousand flogs with a rusty noodle.