This community has a lot of good ideas. The most important one is the need for permanent notes. This allows me to forget stuff because I know I’ll find it in a shape that is useful for me.
Then there are ideas on how to do it. Zettelkasten, PARA, Johnny Decimal etc.
And finally what to write for example habit trackers, daily notes, ledgers etc.
I like looking at other people notes because it gives me ideas on how to improve my own notes. I’m not in a stage where I would blindly copy anything, but if something catches my eye I think how to integrate it into my notes. And that’s the value I get from this community.