ofcourse you can burn holes in what I say - however:

My previous guild was actually approached by a GM - he asked very politely, why the entire guild suddenly all were connected from 1 IP-adress, geographically located in Denmark of all places, where as 10 minutes earlier, the guild was connected to the wow-servers from 45+ different locations all over Europe. We explained the situation, this was back when Telia had several peering issues with other major ISP's, which hit some regions harder than others. Certain british adsl customers had 10.000ms pingtime, and that made for some really horrible healing on Nefarion

I had access to a very large fibre connection back then, and still do. So I had setup a VPN dialer, that my entire guild tunnel'ed their traffic through. By sending their traffic to me first, and letting me peer directly with Telia through a server at work, I reduced their lagtime/pingtime down to about 330ms on average - enough to finish both BWL and MC without any hiccups from disconnected maintanks, healers or otherwise.

He said that was an awesome way to circumvent a problem that Telia had to sort out with their respective peers, and wished us best of luck. Had the IP been in China, it might have turned out differently.

But, I'm arguing stuff that I can't really be arsed arguing about.

When it all comes down to it, in each and every case, Blizzard has a bunch of logs and information, and a subjective person reviews these logs, and acts accordingly to guidelines and probable his own "sense" of what is happening. Ban or no ban, hope his coffey was good that morning, if you're deviating too much from what could be seen as the "norm".

And keep the peace, grow some trees and dont share your account with anyone.