Sure people are rational, even though you as an external actor may not agree with their motives. Even a schizophrenic is rational given what they have to work with.
I'm not sure what perfect information has to do with anything. It's impossible that perfect information could ever exist.
I suppose you have your own definition for "perfectly rational" that you're standing by, and that's fine. But I fail to see the point. How is that relevant to this thread?
I originally posted that people wouldn't use these web services if they didn't receive some benefit from it, and you've done nothing more than present red herrings.
I'm not sure what perfect information has to do with anything. It's impossible that perfect information could ever exist.