Hi - please note that as per Seattle law (see RCW 46.61.235 and SMC 11.14.135) there exists a legally protected crosswalk at all intersections with curb ramps whether there are road markings present or not.

As such, these crossings (and the others in your recent similar changesets) are not informal crossings.

I also recommend avoiding use of the `crossing=*` tag entirely: instead, tag `crossing:markings=*` and `crossing:signals=*` as appropriate.