Sadly, i've gotten so bored with stealth that i figured that out myself as well...I was using my pointless custom command of .own (bans and leaves a messages like ((((OWNED)))) ) on my bot, and trying to see what combo of bnet toolz attention-grabbing header things with random "~`" and such looks good...and i did it too much and that happened. I didn't know it was an acutal bug though, I thought my computer just lagged up and didn't display the void users
'Tis funny indeed.
I also like how when you go in teh void, there's always like 400 users there ;P