Everything on the web is a robot, every client is an agent for someone somewhere, some are just more automated.

Distinguishing en mass seems like a waste to me. Deal with the actual problems like resource abuse.

I think part of the issue is that a lot of people are lying to themselves that they "love the public" when in reality they really don't and want nothing to do with them. They lack the introspection to untangle that though and express themselves with different technical solutions.