I got lazy about this one because I was just splitting an existing path. Fixed.

iD turns the GNIS ID used here into a link, and when I click it, it 404s. Is the GNIS ID used here right?

I'm really confused by this way. First it was a cycle path, then it was a multi use path, but Streetside doesn't show any kind of bike lane or path, just a standard sidewalk. Am I missing something or should this be tagged as a sidewalk?

Good catch, yeah.

Yeah the problem was that I was previously using King County imagery for most of my new mapping, and even "corrected" old maps to be aligned with King County. I'm remembering to configure alignment now and might try to make some of this default. (Touched the items in the park because they were also mapped (incorrectly) with uncorrected King County.)