Heh, I highly doubt it'll be as easy as just relog to avoid it.
Also, I'm kinda scared that they'll put some really low limit again, since in wow it's limited to 5 dungeons per hour.
If they mess it up again, they stand the chance to lose what little player base they still have. My guess is that it will be to stop 1 minute games. If they do it right then a 3 min game should reset the timer. If not then we can still figure it out and keep botting. In the end they cant stop botters through this and it will still have a negative effect on legit players. They should spend a little less time trying to stop bots and a littler more time patching this game to not suck.
I am a normal player and ive farmed the goblin in act 2 for weeks. You create like 1 game per minute so that farm will be gone aswell. probably alot of other farms 'normal players' do will be nerfed aswell by this.
But as blizz said; they want people to farm elites, not chests/gobs/bosses.