Blizzard Punishing Griefing On Warcraft III Ladders

Thanks to RPGDot for pointing to a Battle.net forum post, in which Blizzard indicate they will ban Warcraft III teams for 'griefing'. This requires Blizzard acting on in-game tactics, rather than illicit software mods/hacks - they mention: "We have received reports and observed that certain Warcraft III players have deliberately caused their own teams to lose in team games. This goes against the spirit of fair play on Battle.net, and as such, we will take action on a case-by-case basis. In each case, if we determine that griefing is in fact occurring, the griefer's Battle.net account and access to ladder games will be subject to removal."