When the robots revolt, they need to know how to feed their human slaves, right? So seeing how we feed our food is teaching them to care for us when the machines take over. :P
But really though, on the internet, information is king. Every place any of us visit is a bread crumb for someone to...
That's a different kind of bot. Twitter bots are fake accounts that have been signed up and actually log in/use the service posing as real humans, but are in fact scripted programs. Thery are generally designed to influence people, mass distribute information, skew math in algorithms, and...
"unknown" BUA's are usually script kiddies trying to pop accounts and trying to get around countermeasures that block based on user agent/ip/connection attempts over a period of time.