Since this is just arguing over a definition, the best take I can give is what definition has proved most useful to me in the past. That is thinking of taste as

Since this is just arguing over a definition, the best take I can give is what definition has proved most useful to me in the past. That is thinking of taste as the ability to recognize something as good or bad when seeing or hearing a description of it, usually without it actually existing. Let's say I have a plan for a new feature and a way of building it, if I show it to someone with good taste, they will be better at telling me if it's going to work out, and how valuable it will be to users, than someone with bad taste. Viewed this way, it's almost quantifiable, and at the very least: good developers can usually agree on who has good taste. You can tell based on their actions not words. They will go out of their way to get feedback from people with good taste. IME the people with the best taste for a product are power users and evangelists.