Posterous was in my YC batch and the first thing I suggested to them was reST support. They've obviously had bigger fish to fry. Meanwhile, instead of taking an hour to implement a simple script to process markdown files into HTML and send them to Posterous, you've chosen to complain that a super-niche feature was actually released.

Markdown is super-niche? News to me.

The point is not about complaining, its that the company said a year ago that they would push it soon

There is no reST library for ruby that I could find.

Yeah, I wouldn't really hold my breath for one, either. The closest anybody has come as far as I can tell is here: http://github.com/alphabetum/rbst and all that does is wrap docutils' reST processing.

Yea, really, who cares? The overwhelming majority of people will never use this feature.