I only know about because I've seen it used, primarily on Post Offices. Wiki slightly mentions it on a talk page (osm.wiki/Talk:Key:addr#Key_addr:village_introduced) and TagInfo shows it's in use (https://taginfo.geofabrik.de/europe/great-britain/keys/addr%3Avillage).

I'll let you make the edit since you caught it.

The wiki for Tag:shop=supermarket says area along the "shop outline". Not like Tag:landuse=retail that says "an area containing the whole of the retail area: the shops and car parks." or Tag:amenity=school that says "Mark the boundary of the school" So I think it should be on the building, like I changed it to, and how it is in all other areas of OSM that I've seen. But if you have an argument otherwise I'm happy to hear it.

As for your second comment I find it a bit rude and narrow minded. Is OSM only allowing local mappers? I could be rude too and ask why an amazing local mapper like yourself hasn't added the postoffice in Larkhall? But I don't want to be rude, I want OSM to be the best map.

I'm happy for it to be changed to addr:suburb=Larkhall, addr:city=Bath.

My goal with this was to add the postcode, and secondarily the FHRS id, so truthfully I didn't pay much attention to the city.

However FHRS (https://ratings.food.gov.uk/business/en-GB/243858) suggests addr:village=Staithes, addr:city=Saltburn.

Post Office Ltd for a nearby Post Office in Mickleby, still in TS13 (https://osm.mathmos.net/postoffice/branch/16126, not on OSM yet) suggests addr:village=Mickleby, addr:city=Saltburn-by-the-Sea.

I think addr:village=Staithes, addr:city=Saltburn-by-the-Sea is probably the best.

In 83267160 I accidentality added source:addr to every poi I edited. Even when the address was already provided by other sources. I correctly used the source tag on the changeset, and there is the argument that it should be on the changeset and not the poi anyway.

Can someone please check St Monica Primary School. This is the first time I've made a relation.

way/224095678 was a way without a building tag. I added the tags to the existing building. I didn't delete this KFC, simply delete a duplicate way.

Reverted in 76853499

Well... this needs reverting

Hey, I followed a proposed spec, but I will swap for the in use one.

osm.wiki/Proposed_features/payment:self_checkout