[mirman]

Do you have any reasoning behind that opinion, or is it just unfounded religious zeal?

Why should somebody who wants to use threading have to know how to write a preemptive scheduler? If you want a tutorial in addition to the library thats fine, but many good tutorials also release their code as libraries. In open source world, releasing code as a library does not mean having to keep people from understanding the workings of that code. Why should people HAVE to learn how the code works to use it though?