It is more important in relationships to dislike the same things than like the same things. Now, I am not saying that it is not important to like things in common to share and engage with together, but liking the same things is not going to relieve the sense that there is something wrong with the other person's taste when they love something you hate or vice versa. Neutral to things they love is okay, as is neutral to things they hate. But we all like the same things as a lot of other people, but that doesn't mean we should friends or lovers with those folks.
In other words, just because you agree with someone else you typically disagree with on all others things about one thing doesn't mean you feel the need to share that one thing. That way lies misery.
So, I come seeking more, but unrelated wisdom.
If someone has an animated character as their profile pic, it generally doesn't cross my mind that they are said animated character. Similarly if it is a picture of someone famous in a movie or television scene. If it is a photo of a person posting under what seems a persons name I might just assume its them. If it is a person photo under a not person name I might get curious who it is a picture of and why I don't recognize them if they are famous enough to pick as a profile pic. What if it is a picture of someone that google notes is somewhat well known in their field but not posting under that name? Is it strange to wonder? Is it odd to ask them? Is it strange that I would even bother to google reverse look up any of these? Is it possible I am a Lego archer dreaming I am a human typing this question?