As many have pointed out, this is not really analogous to robots.txt. The first thing I imagined was a text file that said stuff like, "Don't read anything in

As many have pointed out, this is not really analogous to robots.txt. The first thing I imagined was a text file that said stuff like, "Don't read anything in the Features section. Also, don't try to use the admin login panel!" But really, what this idea should be called is developers.txt. I thought it was a silly idea, until someone else here talked about it providing a way of verifying work. Anyone can post a website with screen captures of other sites, and claim they worked on them. Even if the site does list a developer firm in the footer, as long as I worked there, I can claim to have worked on that site. A developers.txt file like their example would make for a verifiable list of the people who actually worked on the site, in a way that does not add clutter to the actual content. I know clients we work with probably don't want us putting all our names on their About page, but would have no problems with a developers.txt file that normal users are never going to see.