My friend is Baba Yaga
The idea of the original presentation of the interests of users in social networks was born. The idea is relevant primarily for networks, where the main activity is editing and retrofitting its own profile, in order to increase the “detectability” of holders of similar tastes and preferences (“Mayspace” and the like).
It is known that a wide enough interest (for example, “rap”) is often narrowed down to an interest focused on a specific artist (or a certain number of performers). If the artist has his own profile, he will be immediately “added” by the fans. But what to do if the performer does not have a profile (in the case of rap, illiteracy can be an additional problem)?
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To the aid will come the creation of the library of persons from different areas of the popular (and not so) culture. With the ability to add them as a friend, categorize, cross-search for accomplices.
Sketch diagram:

In addition to people from the real world, you can mobilize characters from books, films, and computer games. The main trick is that, showing off in the user's “friends” list, they represent a stronger and more personalized image than just “interest” (in the same live magazine I can declare Baba Yaga my own interest, but adding it as a friend - to unfortunately not).
PS: The idea is easy to add by creating a list of "enemies" (if it sounds too tough, you can designate them "not friends"), in the end we will get the possibility of compiling ratings of "favorites" and "outsiders".
PPS: And non-existent (within the framework of this social network) characters could generate profiles with brief information edited according to the “wiki” principle.