I've used the ingame /feedback MANY times giving my feedback to those that matter on this very subject, which is basically:
Public dungeons, while a good idea on paper, aren't working out so well. All they're doing is providing a gathering spot for bots and exploiters. Perhaps it's time to reconsider the design flaw and correct it by making all dungeons instances with one boss spawn per individual/group running it.

Edit:

Requiemslove wrote: »

Its one thing to kill a boss a random amount of time over a relatively long period trying to get the blue...its another thing entirely to consistently without any pause be camped on a boss spawn site and attack immediately the very nanosecond it spawns.

I see absolutely NO difference between a player that sits in one spot constantly killing a boss and a bot that does the same damn thing, just quicker.
They are both exploiting the game mechanics for their advantage. I've ALSO used /feedback to suggest perhaps upping the difficulty of the bosses in public dungeons.
Think about it. These bosses are being farmed so easily because they stand NO CHANCE of killing anyone that's grouped around them. That would change if they became tougher, eh?
Not to mention the whole "risk vs. reward" balance concept game designers use. No risk? No reward. High risk? High reward. Simple as that. These bosses are balanced around a single player assaulting them, and under such circumstances, they -might just- be more difficult to kill. However, with ten to twelve bots camping them, there's no risk...so there should be no reward. Or..the boss becomes tougher, capable of wiping out that ten to twelve man bot party going on and laughing at the end of it.

Chili wrote: »

I just do not get why they can't just ban the bot accounts. It will only take a GM 30 seconds per dungeon boss to see who is botting and take action.

Hurting the player who just want that blue item is a terrible "fix".

Takes a lot longer than 30 seconds for most.