[David A. Goldfarb]

I asked the same question a few years ago and got shot down - the problem is no one would want to maintain it, pure and simple.

Another way of putting that: if someone were to do some solid, complete, and reliable reporting on this question and start a thread about it, say posting an update four times a year, then we'd probably make it a sticky.

This is how it works in general--someone starts a thread and it turns out to have lots of good information and not too much noise, and we make it a sticky thread. We don't start thread as a sticky typically and hope people contribute in a way that makes it worthy.