I don't really care what others think. — Tom Storm
Really? Not at all?
Or are you suggesting with your term 'collective process' that there is an intersubjective agreement about what art can be considered good? — Tom Storm
Some important 'decisions' are made socially, collectively. For instance, how does a worker in a plant know he is working "hard enough"? The workers collectively define what "working hard enough" is, and discourage fellow workers from not working hard enough, or working too hard. Workers define what "good performance" is. Collectively, they define quality performance, and sub par performance, too.
We observe each other; observe many cues; look for positive and negative responses; adjust our behavior to fit what others are doing. The effort to fit is made more or less automatically -- because we are social animals.
Within our social milieus we determine what a proper cocktail party is; we determine what kind of public religious activity (including speech) is acceptable, and not. We determine what attractive landscaping is; what a nice house looks like; what 'well dressed' means; what kind of car is acceptable, and not.
We determine what music is popular among us (our milieu) and what is not; what novelists are 'good;, which are not. [Ayn Rand has been judged bad by many of the TPF milieu.]. We learn what kind of art is acceptable and what kind is not. There are certain films that won't be discussed at a proper dinner party. Certain jokes can be told, others can not.
There is nothing mysterious about how this process works: we are social animals and we do look for clues among our people, our milieu, about what is considered good and not good.
We may be inclined to consider WHY what our crowd, our milieu likes what we do, and why it is defined as good or not good. We'll remember that in a college class we used a text on criticism; [that class is now 55 years in the past. Sorry, don't remember.] some of the authors had ideas about what constituted "high quality art". We might do google searches, look for criticism books on Amazon. We might find exactly what we were looking for: a cookbook for thinking about art.
In the cookbook we would find chapters on the history of art forms and the value they were given. We would learn how to look at the structure of a painting, a piece of music, or a novel. We would be directed to evaluate the content, the symbols, the sources, the interplay of characters, and so on. Through reading the book, and applying it to paintings we look at, music we listen to, novels we read, and so forth we would find ways of supporting our preferences. Preference (personal opinion) might stay the same, but we would be better grounded.