Looks like it might have been case sensitive.

I did try using a - in front of the user name, but their notes still showed up. :/

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.

That’s the intent of OpenSidewalks, but last I checked it was only available for three cities.