At best, using multiple, automatically-controlled characters is poor sportsmanship. At worse, it's outright cheating. Personally, I'd like to see the issue dealt-with by the devs. I don't use alts, even for mining, but if coding the game in such a way as to disallow players from having multiple characters from the sam IP address is the only way to stop the abuse, I'd consider blocking alts to be a reasonable compromise. I don't mind getting whupped if my opponent out-thinks me but botting isn't out-thinking, it's deliberately taking an unfair advantage and it reduces the enjoyment many get from the game.
