accounts being banned for using bots

Now I have heard of this more than once but what exactly are bots. I mean I know that it is more than likely a program but what exactly is it doing for these accounts that are getting band ?

Bots are pretty much a script or code designed to do simple tasks over and over again without the user having to do anything.
For example, farming bots will go to a chest say, somewhere in the desert, zone out, zone back in....lather, rinse, and repeat.

Botting is against the EULA, and extremely pathetic. Arenanet, as most game-developing companies, have a zero-tolerance for such acts. Hence, the banning of botting accounts.

i agree with it 100%; it spoils the games for everybody else...

my friend had a web-game and they put so many blockers and walls against bots that people couldnt use the game as everything they did prompted a warning or alert... pointless.

do we really want guild wars to end up like this? think before you use anything not officially endorsed...