People are more comfortable when they can sort their experiences into neat little boxes that can be easily defined and described when it comes time to talk about them to their friends.

Whether it's because I'm an outright weirdo, or because I'm ADHD as hell, I don't have a "theme."

Oh, don't worry! You are not a weirdo nor ADHD as hell. In my opinion, you are just a clever guy who don't want to become into one of those "greedy beasts" enclosed into their neat little boxes destroying soon enough all the enjoyment of freely sharing your thoughts.

In short, we can say that you have no intention in turning your hobbies, interests or entertainment into a slave's job.