There is no objective measure of taste. Popularity says that at least a lot of other people agree there is taste here.

Popularity says that a lot of other people agree there is value there. While I'm not informed enough to say what 'taste' means exactly, the common understanding that seems to be present in this comment section is that it's not a direct proxy for goodness, usefulness etc, like what you imply. I think most would agree that there are tasteful things that aren't also mass-marketable immediately useful goods or services.