[Ajedi32]

Yes, once you start asking _really_ difficult questions that require in-depth knowledge of a niche topic to answer SO becomes less useful, since the pool of people who know enough to actually answer your question is too small.

In cases like that I usually just end up answering my own question later, after I've figured it out by other means.

[klenwell]

This is actually one of the use cases I really like. I'll often deliberately add a question with an answer if I think it is something I'll use again in future and is not found somewhere else obvious on the web.

[nt8eo923nt45]

You can often find the people more knowledgable on a particular subject in one of the other stack exchange sites. (For example, a problem with OpenGL or Unity might be better asked on gamedev.stackexchange.com, or computergraphics.stackexchange.com.)