Inventory is another issue indeed, and even now when we get 3 new classes, SE has stated they will not increase armory/inventory space. It is rather ridiculous given that we were allowed to have multiple classes, and this means I have to juggle sets of gear for DOH, DOW, DOL and DOM.
But yes that is besides the issue.
I don't think trying to monitor prices will help, while I still maintain that changing your flags if say like a status like /busy Sets a bunch of flags in programming to "no" why not have a copied and modified flag for "invisible" which just puts you out of being searchable.
I'm also curious about the scripting of the game since in less than a minute of logging in I was already spammed. Are the bots able to execute searches and send tells so quickly? Are they using the outside player database ie Lodestone to get player information?
I think knowing how it works would help users come up with solutions that devs can work on, otherwise it's something of an exercise of throwing spaghetti on the wall and seeing what sticks.