> You can pick the most advanced and niche topic and there will always be an expert here who can elaborate on the subject. There's a firearms forum that I freq

> You can pick the most advanced and niche topic and there will always be an expert here who can elaborate on the subject. There's a firearms forum that I frequent that is like this. I believe it's mostly by virtue of it being so large, but strongly suspect that the financial barrier to entry for the hobby favors successful professionals. Unlike HN, though, the S/N is not always high. You'll often find a thread with a dozen extreme or downright incorrect posts for every high-quality, knowledgeable one. It's a useful resource, but you have to have a well-developed filter to use it effectively.