Yes, I have seen stuck keys, thank you. But never on a modern, quality piano (acoustic or digital) with wooden key levers, or at least never because of the key levers themselves --unless the piano had spent the night underwater.
Right now, as I type this, the highest 'B' key on our Young Chang is sitting slightly lower than the other keys. It gets played a lot because my wife teaches on it, but it is very well maintained and not underwater at all.
Frankly I don't appreciate being bullied by the suggestion that favoring wooden keys on a piano equals following a "stupid" tradition like supporting corridas only because corridas have always existed. I am sure many of us on the forum find such an assumption quite rude, to say the least.
Dude, lighten up, I'm not trying to bully you at all. The poster is saying that tradition is sometimes
not the smartest thing, not that all tradition is necessarily bad.
Some people will follow a tradition just because it's a tradition.
Some people will reject a tradition just because it's a tradition.
Still there are others (and I remain hopeful that it's the majority) who will look and think before they decide.
Put me down for the third group. I want the keys on my DP to feel as close to real piano keys as possible. But for weight and QC reasons I would prefer they not be made of wood.
I don't want to be calling in a piano technician when one of my wooden DP keys is sticking.