If you sing in public any audience worth its salt is going to discuss your singing

A friend stopped singing in clubs because he wanted his audience feel his angst. And they didn't necessarily. He was a good guitarist. But I took from the situation that everyone performs for their own reasons. And the audience take from it in their own way. Being told something can be "helpful", but sometimes it is to make themselves feel good, the inference that it reduces you is your inference, and is not automatically so.

I well remember telling someone about "Sprachan Light", quoting as near as I could from Ali Bain. The guy was not having any of it, I could hear the tone "I play it, I am the expert". FWIW even Tommy Anderson (says Ali Bain) was not sure himself if it was about the death of his wife or the cottage lights missing when young men drifted away from Island life.

Even truer of other people singing your songs. You have to let it go, they are not you. Don't have your intonation and may have more skills! But the first time it happens, it is strange.