So you know how they say you shouldn't argue with people on the Internet because no one changes their mind? Not exactly true. Sometimes people do change their mind (I mean, look at me), but more often, you'll be exposed to a new way of looking at an issue that you had not previously considered.
For example, I tried to convey the thought in previous posts that a judgment can be subjective even if it is universally shared (like one actress being more attractive than another). Turns out there's a word for that, one that has been used on GSC before (but it's been about 16 years). Someone on threads tried to convince me that morality is objective because of something called "intersubjective objectivity." As first I thought he was babbling, but when I looked it up, I realized this perfectly articulated my feelings on morality:
Intersubjective objectivity is when you have a subjective judgment and it widely, widely shared. Like, widely to the point where if someone disagrees, you have to question that person's sanity. Like, "E.T. was a better movie than Mac and Me," or "Celine Dion is a better singer than Yoko Ono." I mean, these are opinions, but you'd be hard pressed to find a sane person who disagrees. We treat such opinions as objective, even though they are not. That is "intersubjective objectivity," a term that I do not employ because I find it misleading (as it is not objectivity at all. It is an alternative to objectivity). I prefer to just call it what it is: Intersubjectivity.
Morality is not objective. It is intersubjective. Murder and rape are not objectively evil. But the subjective judgment that they are evil is so pervasive that they might as well be objectively evil. They are intersubjectively evil.
You may still find the odd person who disagrees. We call them sociopaths. We have a vested interest in protecting ourselves from such people.