What is the supposed meaning of sidewalk=this? That value is not documented at osm.wiki/Key%3Asidewalk and meaning is not obvious.

Consider using standard tagging if possible or documenting meaning of this value if it is really necessary.

See https://overpass-turbo.eu/s/sJX

Unable to answer "What street does the (house) number 4 belong to?" for way/173756185 via StreetComplete 24.0-beta1:

addr:housenumber=4 not logical here

Unable to answer "What is the name of this road?" for way/5079451 via StreetComplete 20.0:

Part of Hämeentie, needs to be split

Unable to answer "What is the name of this road?" for way/24784680 via StreetComplete 20.0:

Officially just part of Hämeentie

The place has gone or never existed. This is an auto-generated note from MAPS.ME application: a user reports a POI that is visible on a map (which can be outdated), but cannot be found on the ground. (OSM data version: 2016-06-01T10:03:02Z) #mapsme

There should be behnford's here
http://www.behnfords.fi/

Pitäisiköhän tämän olla polku?

The road is temporarily cut until they finish the construction of the Raide-Jokeri

Piispankylä

this is nahkakuja

via StreetComplete 19.1