Welcome to OSM! Your no_u_turn relation isn't usable because the roles of the relation member is missing. For the human because of the one-way streets clear after some consideration, but the machine also needs a way from and way to. please see osm.wiki/Relation:restriction for more details

Welcome to OSM! A house doesn't have the name House, this the description (also Garage)

Welcome to OSM! Why did you paint a small way over a existing way (booth named Streamside Drive)? The smaller way has the highway value secondary (see highway=secondary)

Welcome to OSM! Please move your address from the landuse to main building!

Willkommen bei OSM! Der Kommentar beim Changeset soll den anderen Mappern erläutern, was man geändert hat. Damit ist das aktuelle Datum kein passender Changeset Kommentar. Bitte achte auf eine passende Beschreibung.

Welcome to OSM! Please don't mark the whole property as building. Only mark the building as building.

Welcome to OSM! Don't add any private information from residential or owner to a residential building!

Welcome to OSM! I must deleted you node, because you aren’t a church and the node isn’t well placed. I don't think your business exists in the middle of a street.

Welcome to OSM! Can please add the other highways? This way has no connection to existing highways!

Welcome to OSM! Is this really a clinic? Please read amenity=clinic (staff size). For better description of your business please read healthcare=* and osm.wiki/Proposed_features/Healthcare_2.0 . See special key medical_system:

Welcome to OSM! Please don't mark the whole property as building. Only mark the building as building.

Welcome to OSM! Please read aeroway=hangar for a better description.

Welcome to OSM (again)! A house number isn't a name, please use addr:housenumber instead. And don't forget the key address:street to have completed address.

Welcome to OSM! Are these two playgrounds or two playground equipment?

Welcome to OSM! You named a point not the highway way/18732319 . Is this right for you?

Welcome to OSM! You add a way with the name CIS Trail. Is CIS the abbreviation of Clinton-Ionia-Shiawassee? Can you please expand this abbreviation?

Welcome to OSM! You forgot to add any information to your node/5246524640. And please see my correction of your other node for a better description. Probably you could add an shop=convenience .

Welcome to OSM! Note that in OSM description of the objects has the highest priority. Objects that have only one name, have little sense. As home page for the question "How do I describe you?" I recommend the page osm.wiki/How_to_map_a.
see node/5246545979

Welcome to OSM! How high is this hill?

Welcome to OSM! You forgot to add any information to your node. You can add the address with addresses:housenumber and add:street (see addr=*)

If you need help: You are welcome!