The way I see something as ‘unpopular’ is that you have to feel strongly about it. I’ve studied the way some people have posted over on Reddit, on all unpopularopinion based subreddits like 10thDentist, TrueUnpopularOpinion .etc
What I’ve noted people of doing there is that they’re saying the opposite of what people prop as popular, for the sake of being the opposite. They don’t feel that strongly about it and you can tell. They’ll write a 2-liner post that is very dry, summarizing that they don’t like something because everyone else did, just through their own words. It doesn’t feel strong, doesn’t feel relatable or resonates anything.
I love opinions where someone points at something and has a very vibrant feeling towards it. I’m tired of any of them, unpopular or popular, that are along the lines of “I don’t know why I like it, I just do” and “It sucks because…it just sucks and I’ve got nothing to add to it”.