Totally agree, that is a huge problem. But its important to note it only works when those bots are imitating people of a group you wish to belong to. So it still depends on the underlying point, there must be a problem with your existing community to want to be part of some other community to begin with. So just bots that are part of the populace doesnt matter unless those bots pretend to be part of the community you feel strongly you want to be accepted into.