Pffft, it's useful!
For example: If I get 8 kills, then decide I want to start playlist in Winamp, I start the 9th combat, go open the playlist and then come back to kill the guy. Keeps MCC going and I only lose a little life using armor with decent def -- with some life steal, you can steal the life back and add 12 more kills to the MCC, totalling 20 and that means 10% drop bonus and 10% exp bonus. Sometimes I'll do entire levels with a pause (or several) in the middle that way (~40kills, 20% drops/exp), wandering off to open something in Winamp or Youtube...
... but that feature disconnects me if I'm not quick enough, ruining everything.
