That's some of the boldest optimism I think I've seen in awhile. Maybe your blog is more popular than I assume, but still
I do not know what "move the needle" means or why you think I am trying to do that. Your excessive negativity and pessimism is unwarranted and I dislike it. Honestly between you and that other guy replying to my comments with seemingly thinly veiled vitriol for my perspective, it's just further proof of my point that being able to communicate with large groups of anonymous people is typically a net negative. Most anonymous people seem to be quite nasty. I'd rather write on my blog where no one like you will see it, and if you do see it, you likely won't go out of your way to send me an email with your negative comments because it's likely you do this for public attention.
Tbh, for niche hobbies even one new visitor a month is a win, if they actually read the article and not skim over it. An eager enthusiastic listener is a price not easily won on the internet. Having even one per month would mean you personally taught something to a classroom of peers in a meager 2 years. Blogposts easily can move live ten times as longer.
For people that spend most of their time on small internet, sites like that are essential, because they work on another level. You know you engage with someone who has a passion for the same things you do, and had a time to polish their words. You know you can reach out for help and be kindly greeted.
This is parts of the internet that are so boring for anyone else, they are totally safe from spam and ads. That doesn't scale, can never scale, if anything like that becomes popular, the massive slopfest would follow and the slop would be sold instead of the original.
And yet those boring places – boring for everyone not interested enough – are there, and people have a way to reach to each other and talk to each other about shared interests. The internet isn't dead for nerds.