I know it's not on-topic, but karma and SO's structure and design makes SO the PHP of help sites.

Make of that what you will.

c'mon dude, SO is pretty amazing. Poor answers are usually pushed to the bottom (though I have seen a fair few basic questions on SO with odd answers that no-one's bothered correcting).

The equivalent of php is dodgy bulletin boards that still doggedly come top of some google searches. And boy do a lot of them have the entirely wrong solution.

I'm starting to get to the point now where I ask SO first and then google, apart from Html questions.

You can ask http://www.duckduckgo.com first now and get the best of both IMHO, since it started to integrate SO answers into its zero-click area.

A dodgy bulletin board that provides what you are looking for.

tangent startup idea: a web service for transferring or aggregating karma across sites, much like banks or Mint.com are to money