What I’d suggest in each case is to ask yourself before adding each note “how will it help?”.
In at least some of those cases, it probably doesn’t. If everyone can see that the sports area is poorly mapped then adding a note saying so doesn’t help at all - what would help would be to actually map it better yourself.
The sort of note that does help is something like “Is this shop long-term closed? It looked closed when I went past, but perhaps that was just temporary”.