Unfortunately the OSM website has a limit to how many it can show you at once and it shows the most recently updated ones, so you can’t see how many unclosed notes still exist.
One of them is over five years old and requires on-site verification, so I know what I’m doing this weekend!
The built-in tools on the main osm website are really limited. My favorite 3rd party tools for managing notes:
I wish Notes Review let you filter out a user. One person makes a lot of notes in my area, and many of them are ones that are low-priority to add. It would be nice to be able to see everything else. I know I can do this on StreetComplete, but it would be helpful to be able to do it on desktop as well.
The mapcomplete.org/notes theme does that, and has some other fun features as well
You can do that, from Notes Review FAQ, question mark on the top right corner:
I did try using a - in front of the user name, but their notes still showed up. :/
it’s working for me, try without a space, e.g.
-username
Looks like it might have been case sensitive.
Oh yes, osm usernames are strange: they can also contain any unicode characters, spaces, emojis, and you can change them anytime. I don’t know any other site where username requirements are these lax.
There were already minor abuses, a troll registered as the username of a DWG member, but replaced one letter with a homoglyph. E.g. these are different unicode letters:
oоο
Just copy them to a unicode decoder.