Some of the 101 reasons to support open source clients:

# 1 - NO SPYWARE!
#45 - NO SPY REMOTE CONTROL PACKETS!
#63 - NO $$$$ GREED SCREWING EVERYTHING UP!
#78 - NO DICTATOR WANT-A-BE PROGRAMMERS!

Why bother with crap when you could have Gnucleus on your system?

http://gnucleus.sourceforge.net/

Same program without your computer being bare naked on the net!

Why be bare when you could just share?