If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Then it's a perfect candidate for garbage collection. I just drop items like this, or, if an item has accumulated too much contextual info I don't want to lose, I postpone it for a month or so and decide later, or move it to non-actionable notes.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.