I’ll be the first to call anybody that refuses to run antivirus on Microsoft Windows a fool. Microsoft Windows just isn’t built the same way as Linux. Being careful on Windows just isn’t enough to prevent malware. Linux is different and the types of threats faced by Linux users aren’t thwarted by an antivirus suite. Proper practices when using Linux will gave you enough protection. Of course technology changes and this may not always be true, but at the time of this writing it is.
Flash is quite possibly the buggiest browser plugin ever with Java being a close second. Ever try to use it on a Mac? That is a laugh. It crashes constantly. On a PC it is incredibly slow and inconsistent at best. It surpasses Microsoft Windows with it’s need for constant security updates. Flash doesn’t work on most mobile devices even where allowed or supported.
What is ReactOS you ask? The people behind ReactOS present it as an open-source operating system that aims to be binary-compatible with computer software and drivers made for Microsoft Windows. Development started in 1998, but the software is still in an alpha state. Yes, you read that correctly. It has been developed almost 17 years and has not even made it to a beta state. In reality ReactOS is little more than a heavily promoted hobby.
It seems that Blizzard does not mind leveling shortcuts or gold sales as long as they are the ones getting paid for it. For $60 you can boost a new or existing character on World of Warcraft to 90 with decent gear, but if Blizzard suspects you of bottling or using AFK means to effectively do the same thing (level without actually playing to get there) they will give you an account suspension in a heart beat.