Earlier quoted context omitted.
In other words you're a troll or you don't know how web publishing works :p I'm talking about major news and media organisations. Immediacy has always been a key differentiator in news and financial data for example (look at trading co's who pay a fortune for systems that will shave milliseconds off getting figures from exchanges). A publishing system that isn't at least near real-time isn't a fit for very many use c…
It's safe to say that the vast majority of Posterous users don't care about anything you just mentioned. Static HTML blogs are just fine for them.
Until they need commenting. I would think hosted wordpress is the more natural fit for most posterous users than github.