>Whether it's robots.txt or #nobots, opting out is required. After all, you're putting the content out there. Anyone who is putting content on the internet is

>Whether it's robots.txt or #nobots, opting out is required. After all, you're putting the content out there. Anyone who is putting content on the internet is explicitly "opting in" to the content being on the internet, with all the rights, privileges, advantages, and disadvantages thereof. They can elect to make their wishes about content sharing known by using things like robots.txt and #nobots, but those are merely weak guidelines, and by then it's too late anyway since they've already opted-in by putting their content in an easily accessible location. Kind of disingenuous to stand on a street corner with a bullhorn and then get pissed that someone heard you and remembered what you said.