I didn't really know how to fit "The following extract shows how a messaging client's text entry could be arbitrarily restricted to a fixed number of characters, thus forcing any conversation through this medium to be terse and discouraging intelligent discourse." into a title.
To me, that sentence sounds more like someone with a chip on their shoulder, and oddly unprofessional for an organization like WhatWG.
(edit: n.b., not calling you out)
Professionals never could have achieved what WHATWG did; professionalism was responsible for the catastrophic pre-WHATWG logjam in W3C. What WHATWG needed was a hacker. And it wasn't an anonymous "someone"; it was specifically Hixie.
To be fair the fact that's all we had to say, due to a character limit also on HN, proves the article author's point very nicely.