A few ideas from SilkRoad Online

I have been playing SilkRoad Online and they have a couple of features that GW should look at. The first is after you login you must enter a 6 digit alpha-numeric code to complete the login, this is a security feature to help against bots. The second is the stall system where you can set up a 10 item store to sell your goods. I think these 2 features would work very well with Guild Wars.

1) Bots are run by people. So not really useful.
2) Vending Stalls have been suggested many times. Personally i think its a dumb idea, since youd still be sitting there waiting for someone to buy something.

There are problems with both suggestions. The first only ever stops clientless bots, and is a pain in the ass for legit players, typing a code every single time you log in. The second, people stall overnight and never log off, leading to overcrowded servers and inability to log in, as well as massive lag. I personally hated both of these things in SRO.

Just go to the Ishades and watch the botters grinding there, or better yet, stand in Hotan and watch them get stuck at horse stall. Code effective? Not at all. Part of why I quit, not to mention JM's lack of customer service, but that part of my gripe's best saved for SRO forums.

If you are impatient, yes it is a pain to type 6 extra letters but hardly a big problem. As far a the stalls, with a little tweaking, maybe an auto close after a certain amount of time, they would work. The stalls are better than a bunch of toons standing around spamming all the time.