Because they are so low friction when taking notes, while making easy to find information again. Plain text files are fine if you have specific search terms you can search on. Some times you just know that you might have noted something around a certain date or under a broad tag. Other PKM systems require pruning and sorting. I find my self doing some sorting for notes I frequently used, but others I'm happy to leave un sorted and look up by tag if and when I need them. Logseq is great for code snippets too: https://blog.g9n.com/2022/07/01/managing-code-snippets-in-lo...
I disagree that they’re low friction. When I open up Obsidian, I’m presented with a relatively cluttered interface, and need to select a location to place the note.
In Notes, I just need to start a new note and type.
You can use Obsidian in that manner. Cmd+N and start typing. There is a setting to have it create the note in your current folder or at the root. If you're used to Notes.app, then root is probably what you want.
