Does Gruber's license hold any weight here? They're not using his perl code. They aren't bound by any license on it. There was never even a markdown spec to li

Does Gruber's license hold any weight here? They're not using his perl code. They aren't bound by any license on it. There was never even a markdown spec to license, just a blog post (and Gruber knows he can't claim any binding license over this spec, because he's not complaining about that, but just the name). Gruber had an implicit trademark on the name Markdown, but holding a trademark requires that a) you actively exploit it and b) protect it. As for a), he completely abandoned Markdown in 2007, never going anywhere with it after a few years of bad stewardship. And regarding b), since he allowed other implementations of the spec to pop up and use the name 'Markdown' liberally before this one, it has become a common item and no one really has any claim over it. For all the chest beating, Gruber has no business telling anyone what they can do with Markdown anymore, unless they're directly using Markdown.pl or taking code from it. Which no one is going to do ever again, specially not after this project sails away.