Over 10 years ago I had a blog where I wrote about beliefs, religion, and philosophy. I had a few regular commenters, and I didn't maintain the blog for long. A friend who had never commented on the blog told me that he started his own blog and that he was inspired by my writings. And years after I abandoned my blog I met someone at an event and he asked me if I was the one behind the blog. He said that it was one of him favorite blogs, even though he had never left me a comment.
I've had this experience repeated a number of times where people express their appreciation for something I've written a long time after they read it.
As writers, we often measure the impact of our writing by the number of likes or comments, without acknowledging that the vast majority of readers don't engage with content through these limited channels. They may share a link to family and friends, and it's very likely that they don't share it with anyone, but your writings may have had a major impact on their lives.
Humans are horrible at expressing appreciation to loved ones, and we shouldn't expect more as writers. Bestselling authors hear back from a tiny fraction of their overall readership.
Don't judge the impact of your writings by the comments, likes, and claps you receive.
Your writings matter more than you think.