Could you please stop posting unsubstantive comments and flamebait? Your account has unfortunately been doing this a great deal. It's not what this site is for, and destroys what it is for.

If you wouldn't mind reviewing https://news.ycombinator.com/newsguidelines.html and taking the intended spirit of the site more to heart, we'd be grateful.

I wouldn't take quite as strong a position as this, but as public pianos go, airports are a weird one to me, because if you're in an airport you have no choice but to be there.

Subway piano? I'm only in the station for a while, and I can choose to stay longer if I like.

Outdoor piano? I can keep walking.

Airport piano that happens to be near my gate? Ugh, I have to stay near this spot even if I don't want to listen. It's the "captive audience" part that I am not a fan of. Doubly so if the person playing overestimates their ability or the novelty of their repertoire.

Why? Rarely do they annoy me and frequently the people playing in places such as airports or hospitals are fairly good.

Why? It's not like someone who doesn't know how to play - and has some songs committed to memory is going to opt to play an instrument in a public setting without having some skill and talent...