Please have a look on osm.wiki/Sandbox_for_editing.

Hello! Please have a look on way/403206115. You move the node more than 100 meters. Please check the correct position!

Welcome to OSM! Please add the adress information to the main buildung not to the street crossing.

There are already similar (undocumented) ideas in connection with bollards. Here are some values: https://taginfo.openstreetmap.org/search?q=contrast .

Although contrastive_stripes is probably the correct technical description (especially for glass surfaces), I personally tend to favour contrasted.

Can it be deleted from your point of view?

No, this is wrong! Please see payment:=**#Indirect_payment_/_wire_transfer. Please use payment:wire_transfer (see "If you can pay by wire transfer (e.g. SEPA") or the more europian key payment:sepa.

Welcome to OSM! Please be careful! You move three nodes over 100 meters crossing other highways and buildings! I move this three nodes back to the original position.
If you need help, You are welcome!

hello! Please have a look on node/13014192042. What is the mean of the tag Tann = hill?

Welcome to OSM! What is the mean of the booth tags
payment:iran = yes
payment:toman = yes
?
Please notice the difference between currency and payment.

Welcome to OSM! Please have a look on node/13013487624. What is the mean of the tag payment:iban=yes?
Within Europe, the IBAN designates a reference to an account and not a payment method

Hallo Norbert! Was soll denn der Schlüssel new bedeuten?

Hello! Please have a look on https://overpass-turbo.eu/s/28d1. What is the mean of the tag _nvbw_temp_object = yes
?

Welcome to OSM! Please move the security camera on the right side of the highway.

Hello! Please have a look on way/1415841199, way/1415841597. What is the mean of the tags
Lankroll = Normal
Ordningsnummer = 2567
Vard = Ja
?

Welcoem to OSM! Please notice this a production database not a place for a joke! I revert your change set.

Welcome to OSM! Please add useful change set comments. I delete your marking.

Hello! Please have a look on http://overpass-turbo.eu/?R&Q=%5Bout%3Ajson%5D%3B%28node%5B%22Berg%22%5D%3Bway%5B%22Berg%22%5D%3B%3E%3Brel%5B%22Berg%22%5D%3B%29%3Bout%20meta%3B
What is the mean of the tags
Berg = 103
Humes = &
Stonelined = Cleartone
Trumpet = Mute
Is this a copy & paste error?

As the address nodes have a complete address, it is not necessary to describe the building with the streets.

Please have a look on way/1081275914. What is the mean of the tags
BOKST = C
FASTEIGNAH = Einilundur 8C
?
I suspect that these are foreign keys from the data source that have already been completely transferred to the OSM database. Can these therefore be deleted?

Hello! Please notice this is a production database!