On HN specifically it's pretty challenging. I haven't made a billion dollars, I haven't scaled anything up to 10 million users, I don't have a Github project with thousands of stars, ergo there's no reason to listen to anything I have to say. I have no merits to spend on the meritocracy here.
HN also tends to rush to embrace the shiny and the new, so it's not sufficient to say something like, "build new things out of old, simple, battle-tested tools" -- which would be a stupidly obvious thing to say to a room full of greybeard sysadmins -- but you have to be able to justify why you should use older tools, and you have to be able to show that they're sufficiently better than the new thing, and you have to have specific examples, preferably from personal experience.
And I don't have the encyclopaedic knowledge to field that argument on much of anything, either.
...maybe a better way to handle this would be to just ask you, what is it that I could say that you would listen to?