This is relatable. I often find myself starting a reply on here, really thinking it through as I type it out, and then hitting delete on what I just wrote. Sometimes I even hit submit, and then delete a few moments later.
It's just hard to justify engaging. Worst case, I get a fight on my hands with someone who's as dogmatic as they are wrong, which is both frequent and also a complete waste of my time. (A tech readership is always going to veer hard into the well, akshually...) Most likely case, I get fictitious internet points. Which - I won't lie - tickle my lizard brain, just as they do everyone else's. But they don't actually achieve anything meaningful.
Best case is that I learn something. Realistically, this happens vanishingly infrequently, and the signal-noise ratio is much, much worse than if I just pulled a book off my shelf.
I suppose this is all an artifact of time and experience. Maybe I've just picked all the low-hanging fruit, and so I no longer have the patience to watch people endlessly repost the same xkcd strips from fifteen years ago, navel-gaze about tabs or spaces, share thrilling new facts that I have in fact known for many decades, etc. And while I'm very excited for them to discover all these things anew (and anew... and anew...), it's just not a good use of my time and patience to participate.