The Internet is written by bots

So I did a web search for "Lisp typeclasses" and the top results were these. They are exact clones, the same question and same two answers with the same wordings. Why the hell would people make bots to grab text off Stackoveflow and paste it to their sites?

http://sofd.developer-works.com/article/19312534/Typeclasses+in+Common+Lisp
http://ambracode.com/index/show/187304
http://stackoverflow.com/questions/30637469/typeclasses-in-common-lisp
http://www.solved.online/974876/typeclasses-in-common-lisp

Why are you interested in whether or not I am guys bots?

>>7
Can you explain more deeply why you are concerned if been talking to bots the whole time?