From experience no. Site gets a 404 for me if a virus has eaten up my computer and is dozing off and screwing around. Or more commonly AG updates that cause the Forums to go offline.
One would think that this is a virus related problem, but when I tell you that I have experienced this on both a home computer (with IE and FireFox) AND an iMac (with FireFox), would you still argue that it is a virus?
I thought it was a virus at first to be honest, but when I performed a scan and then switched browsers, nothing had changed! The problem even occured on my touch phone's internet... =/
OP's glitch however, has always been around.
Well, I was fortunate (or not) to have never seen this glitch appear before me in the forums... for everything there's a first time! ;)