Reusing names of characters, locations, etc is allowed because they are not subject to copyright (only trademark, and in very specific cases). But it is bad on unfair to do so?
It's surprising that pagan religions of Europe have disappeared, but polytheistic religions of Asia (especially India) survived and are still widely followed there. Why?
Building on my previous question, it is also allowed to use video game gameplay data to improve an AI? (I decided to split this into a separate question, but I don't know if this question is identical to the previous one.)
These sites allow user to talk with AI powered characters. Users often create character templates based on copyrighted IP on these sites, and other users can talk to them.