I'm not familiar with Bear but it looks kinda similar to Notion. I really love the databases that you can make in Notion, which is primarily what I use it for. It does have some annoying shortcomings though, and figuring out how to do things can be less than intuitive at times IMO. I see Obsidian recommended a lot too, but I haven't used it personally since I think you have to pay for syncing.

I don't use Notion for collecting inspiration though, I just use Pinterest for that. I couldn't find an alternative that I liked that had a moodboard-type layout and was accessible on iOS and PC.

Definitely used books, both because they're cheaper and because I feel like they have more character. Some of my books have notes or indications in them of who their previous owners were.

Travel

Language/linguistics

Careers/work

I know there's the Creative community, but I'd enjoy if there were some more specific ones. Maybe Art (for drawing, painting, digital art), Crafts (for crochet, embroidery, etc.), and Photography?

Linguistic forms that are associated with younger people and/or the internet tend to be stigmatized because of what I like to call the "WELL BACK IN MY DAY" sort of ideologies that shit on anything new. A lot of discourse about allegedly "bad" and "wrong" language is actually rooted in ideologies that stigmatize certain linguistic forms because of who they're associated with. But it becomes so widely repeated that these linguistic forms are "bad", and even people or organizations that portray themselves as authorities on language are saying that they're "bad", and so it simply becomes a "fact" that they're "bad".

a lot of times i don't capitalize things either, and i'm a linguist. you should do whatever makes you happy. :)

I have seen a lot of highly upvoted comments on reddit which were very, very wrong.

I still use reddit for help on things. But for topics that I'm less knowledgeable about (so I can't gauge the accuracy myself), I try to just take everything with a grain of salt.