As a wedding photographer, I love hearing the words "thank you." And it's not just me, all wedding photographers love hearing those two magic words.
Sadly, sometimes, I don't hear thank you at all. On occasion, when I deliver photos or even a wedding album, I never get any sort of feedback whatsoever from clients. I can usually tell early on who I will never hear from. It's usually the clients who don't communicate very much and when they do, it's usually brief. Like maybe one or two sentences.
It's not that I need to hear thank you or I go fishing for compliments. It's just nice to know that the work I did is appreciated.
For all those who never say thanks, all that sadness goes away when I get feedback like this.