"For me (you)" is the important qualifier here.
Subjective things (like art) can be objectively rated according to how many people like or dislike them. That is an objective metric, which is why it is so widely used.
Does not mean you need to like what the majority likes.
Interesting that in your suggestion, something subjective becomes objectively measured on account of its popularity. In another model (alluded to by myself too) it's not that the subjective became objective by metrics that are entirely
external to it (eg number of people who like it), but that the number of people of who like it implies techniques/other traits that themselves bestow to the original object a measure of
inherent objective worth, which then (while depleted or altered in ways) ultimately cause it to have admirers.
I'd say that the degree of subjectivity can wildly vary. To take it to an extreme, if you thought that the term for death in greek was actually the term for life in greek, you'd likely agree that "life" (actually death) is good. Likewise for projecting a meaning to works of art, when that projection is fiercely personal (goes without saying that in practice it is less personal, but still able to dictate your view). In the end, however, it is true that the measure of art is its audience, but some ideal audience that includes all possible in reality variations (again easier to see using the extreme: the homeric epics in ancient greek wouldn't likely be picked up by people who don't read greek). Given time, the work can reach a decent/critical number of observers, thus satisfy this criterion.
As for what the popularity may be down to, again it's more direct to examine a visual-based example. Various teen tv series/movies were popular despite having very simple plots: they already included good looking teens, which are something the audience wants. Itself this is a decision by the "artist", just of a different type than calculations about a memorable reveal etc. The artist there doesn't even need to create the popular aspect; they just hire it and it is meant to be used by and large "as is", without having to assemble it like with words and passages forming a scheme in literature.