Yeah I still think its a good idea, its nice to have all that information stored somewhere. If its in json then I can use it in a program or if I want to do it manually then I can read the json file directly. Definitely better then the scribbles in my notebook.
I don't really understand what part of it constitutes a "joke".
I was on about a specific resume that featured on HN about a year back (give or take). I wasn't aware of jsonresume.org when I made my comment. Sorry for the confusion.