>>20
You'd be involved no matter what. Mind virii depend on memetics, and sooner or later BAM. You've just lost The Game.

http://en.wikipedia.org/wiki/Meme
http://en.wikipedia.org/wiki/Memetics
http://en.wikipedia.org/wiki/Viral_phenomenon

Such systems designed for public consumption would not have "mind virii" other than memes. A brain and a computer are two different mediums divided by a barrier/interpreter (brain/sensory info -> interpreter -> data; data -> interpreter -> brain/sensory info) which would serve as a failsafe to drop crap information (it would be trivial very early on). Also, making a mind virus requires extensive studies into neuropsychology and related technologies being used, making the amount of people who would be capable of pulling stuff off really rare (short of government agencies, but they have politics and ethics to contend with). The worst a person may get is a seizure due to a medical condition combined with flashing lights in VR (due to /b/tards and the like), mental scarring due to goatse exposure (again, /b/tard related), or disorientation due to sensory confusion (various reasons).

VR is NOT The Matrix. You wouldn't die in a VR unless the thing is hardwired into the brain and has some way of killing brain cells directly (electric shock) or are dumb enough to an hero IRL because of something happening online (MySpace, WoW, iPod, boy/girlfriend, emo, failure).