I disagree with Dogg. The boot option is integral I'm sorry, especially in this day and age.
Not everyone shares a good internet connection, If I'm hosting a room and I'm faced with a horrible lagger then I would like to get rid of that horrible lagger thats ruining the experience for us all instead of creating a smaller room all over again but with one less spot.
In addition, if there are some beginners out there making some sort of a beginner room for themselves then maybe they just don't want to be beaten 100-0 by some show off until they actually have a better understanding of the game.
Also, when theres a prick on the mic who starts to either trash talk or decides all of a sudden to debate racial differences or religion or sing the Nyan cat song (yes, this has happened unfortunately), I would like the ability to boot that bastard out.
If you're getting booted because you're "good" then stop playing shit players and find a "good" room !