Point is that when you post a thread that says something like, “I don’t like rocky road ice cream but all my friends do. What kinds of ice cream do you not like that your friends do?”
And the thread will go on and on and on and no one really cares that you don’t or any other poster doesn’t like whatever kind of ice cream.
So if I don’t like almond fudge but you do, who cares, as long as you don’t try to cram it down my throat.
A meaningful discussion will arise if you say something like this: “All my friends like Sarah Silverman. But I don’t think she’s funny. Can some of her fans explain to me her appeal?”