These are clearly not cave entrances.

Please use the changeset description to say what you actually changed. See here for reference: osm.wiki/Good_changeset_comments

The changeset comment needs to be a description of what you changed, not your name. Read this page for some guidance: osm.wiki/Good_changeset_comments

Also, please use descriptive changeset comments. Here is some guidance: osm.wiki/Good_changeset_comments

These roads aren't part of the main road network. How can they be considered living streets?

Hello! Please remember to save your changes in one area before moving to another, to keep changeset boxes to a reasonable size. Thanks!

Please try to use a more descriptive changeset message, for example "aligned road to imagery", and try to keep changes localized to one local area. osm.wiki/Good_changeset_comments

Please use a changeset message to describe what you added or changed. For example, "Added camp sites". For more information, see here: osm.wiki/Good_changeset_comments

This changeset spans half of the globe, though I can't tell what object caused it.

For a changeset with a large bounding box, it would be helpful to have a more descriptive changeset message (like, "updated opening hours"), or to split up the change into smaller areas.

Using "highway=living_street" anywhere in the US is questionable. Using it in an area completely closed off to public motor traffic is certainly wrong. highway=living_street A single building should have one way with a building=* tag along the outside. If different parts of the building are different heights, those should be tagged as building:part=*, not extra buildings themselves. building=*

Hello and welcome to OpenStreetMap! Please be sure to read up on our community's best practices osm.wiki/Good_practice , or check the beginner's guide if you haven't yet osm.wiki/Beginners%27_guide . In particular, you need to provide a changeset comment that describes what you changed - see here for more info osm.wiki/Good_changeset_comments . Additionally, we appreciate it when you only make changes to one local area before saving and moving on to another. It's good to keep changesets small and self-contained, and a changeset with a large bounding box can be hard to review. If you have any questions, feel free to join any of the global or local OSM communities and ask there https://openstreetmap.community/ . Have fun mapping!

Please remember to save your changes in one area before moving on to another.

I've reverted the changes to the apartments in changeset/127113711.

Thanks for contributing to OpenStreetMap. Please save your changes in one area before moving on to another, to keep the changeset size small. Also, you've changed an apartment complex in Roseville into a Chinese restaurant.

The "error" was probably iD wanting to confirm that the restaurant was part of the Chick-fil-A brand. It should have given you two options: one to say yes, and add extra "brand" tags, and one to ignore and add a "not:brand" tag indicating that it's not the same brand.

The website seems to indicate that this location is part of the normal Chick-fil-A brand, but you've tagged it as "not:brand:wikidata=Q491516", to indicate that it is not. Which is correct?

This change has been reverted in changeset/127063935.

Thanks for your contribution to OpenStreetMap. In OSM the convention is to only map one line per road, only splitting when there's a physical separation between two sections. You can read this article on how to model intersections: https://labs.mapbox.com/mapping/mapping-for-navigation/modeling-intersections-for-map-navigation/

I've reverted your change in changeset/127004091. Please don't blindly delete data just to fix validator issues.