The wallet stealing is the result of malware which spreads in the usual ways: email attachments, malicious websites, or Trojans hidden in freely distributed software (including rogue versions of Bitcoin utilities). We don’t have the remote exploits like Blaster any more.. in fact if you read to the bottom of the link you posted it says it only really applies if your OS is from before September 2004.
Exactly, and believe it or not, many in the Bitcoin community run this 10-year old OS:
http://www.google.com/search?ie=UTF-8&q=site%3Abitcointalk.org+windows+xpOk.. so I guess I agree with you then..
It is a bad idea to run an unpatched OS from 2001 (XP SP1) or 2002 (XP SP2) while connected directly to the internet..