This is not a new thought at all, but I am frequently reminded of it. If you like a thing that somebody has made, be it art, apps, food, or whatever, consider telling them.
This post brought to you by the number of times I have told an author that their book means a lot to me, and they seem visibly moved. Turns out, creators are actually people too!
On the other hand, if you don’t like something, shut the fuck up.