I suspected as I wrote 'communties' you'd have a problem with lol. SOME People have interests, people want to talk about their interests, share information, engage in learning and actives around these interests. Obviously you're a cool lone wolf Ubermensch and I don't expect you to engage with other people about these things on a social media too, but some people do lol. Not you tho. You're proper cool.

see what you just did? you assigned me to a category. 🤙 It's all good. I think 'topic' would be the best word for what you mean in your OP. I'll post the story when I get home then you will understand me. 😇