If your entire matter of "will i stay or not" is being decided by bots farming open bosses, then you are either very picky or you are no fan of this game.
I would almost guarantee that word has gotten out that the game is a buggy mess and therefor squashing bots will be low on the list of things to address. It's like looting during riots. Police are too
Have to say...as much as I like the game I can not recommend it to anyone till they deal with the bots and gold spammers. Why did ZOS not learn from other games about way to combat them? Frankly do
Also have some sweep town areas to ban the zone chat bots and also have a few out in the field (running through all instances of server for those areas) and ban the harvesting bots.