I'm an introvert. And not just a borderline introvert. There are floor lamps that are more outgoing than I am. People have described my display of emotions in public as "almost lifelike".
I'm even kind of introverted on social media. I'm not all that comfortable posting videos. I post photos of myself just because you have to at least run a photo with a page post or the Facebook algorithm will crush your post reach even more than usual. Although I am considering switching to images of something more dynamic, like a placemat or artificial turf.
It is also rare that I comment on a post. It is not a lack of enthusiasm. It's just not me.
And I have found that there are a number of people out there like me. I don't mean this as an insult. I just mean a lot of people don't comment on things.
So although social media algorithms give weight to the number of comments a post receives, it is another reason to look past the numbers. Because they do not take note of the quieter people like myself, who read, watch, and think about what you post, but don't always chime in.