FWIW, the conversation was about the use of metadata tags in documentation. Eric's trying to rally support for a rich, common documentation format. (The NIH quote was his) I'm all for that, but unfortunately it has two problems:
Eric's main premise, "presentation level markup must die!", is a good one. What we need to do with pod in perl 6 is to go to an entirely semantic markup system that looks like presentation level markup. Which is to say, when people don't pay attention and use markup like it's presentation, they really use it properly semantically. (Which is going to be a good trick if we can pull it off)