This just threw a huge wrench in the gears for a spambot detection system I was working on. The kind of content a spambot likes is a great indicator to choose whom to block or not.
Try as people might to defend this anti-networking anti-feature I just don't see it. It's an ok option for some I guess, sure, but tearing up your network unilaterally to create a safer space really just sends us into an even darker forest.