also added a duplicate information (node) to the Fontana di Trevi which is already tagged in great detail.

this changeset added a duplicate name of "Fontana di Trevi" to the water area of the fountain, but the Fountain was already tagged.

fontana di trevi is a world famous fountain, what it surely is not, is a reservoir landuse.

this changeset added the amenity=fountain tag as a duplicate to the water area of fontana di trevi (which is indeed bigger and was already tagged).

No, it is not correct, the user changed the name of a fast food to Air b&b Viktor's place, I have reverted this change.

this changeset adds a way which overlaps other ways and had no tags: way/427814016
I have deleted it. Please do not upload stuff that doesn't make sense.

this changeset performed an automated edit and removed area=yes tags. This operation didn't have benefit. Area=yes tags are not redundant, but are the only way to explicitly state that a way has to be treated as a polygon. Please do not remove them.

Hi, you have added the hotel in the middle of the street, please add stuff at their actual location, thank you.

+1 zum Vandalismus, Details zu löschen mit dem Hinweis, dass sie andernorts auch nicht gemappt sind, geht gar nicht

ich bin mir nicht ganz sicher, ob man die Pläne von SenStadt verwenden darf, bzw. welche man verwenden darf (ich glaube zu erinnern, dass man welche davon für OSM verwenden darf, vermutlich steht was dazu im WIKI von OSM).
Was die UBahnverläufe angeht, so laufen die meistens bzw. weit überwiegend unter öffentlichen Straßen, was zum einen mit vereinfachter Genehmigung (Wegerecht) zu tun hat, zum anderen mit besserer Zugänglichkeit, falls mal was von oben gemacht werden muss (meistens laufen die Berliner U-Bahnen ja nur wenige Meter unter der Oberfläche und wurden in offener Bauweise erstellt, anders als in vielen anderen Städten mit größeren Erhebungen, wo man auch mal sehr tief unter Tage im Tunnelvortrieb gebaut hat).

This added a spanish name for the square to the object that represents the statue for Giordano Bruno. I have fixed it.

this edit removes the name from the Giordano Bruno statue and adds the name of the square in Spanish to it. Please use local names in the "name" tag and use "name:es" for Spanish names. Also please be careful what the object for which you are changing the name, is about. In this case this is the statue, not the public square.

the wikipedia tag with value "Giordano Bruno" that was added here applies to the person G. Bruno, not to the artwork sculpture.

this edit places the bar in the middle of the street, please try to locate new objects at their precise position.

I have normalized the phone numbers to the machine readable international standard that is used in OpenStreetMap.

I have now removed the "entrance" that was tagged as hotel but really is just a crossroads and refined the other tagging, including refining the hotel to agriturismo tags

is the name really "Casalle" and not "Casale"? Is this really a hotel and not a B&B / Agriturismo? The hotel is really called "Entrance to Agr. La Casella"? Please do not abbreviate.

You are right, sorry for bothering you, now I see it, (the other one is also misplaced and in the high zoom level the name of the one you deleted was not displayed).

the Imperial Forums (in the meantime deleted by another user) had been a duplicate for something already present in much greater detail. The other 2 features are precious contributions, thank you!

sorry, you are right for the attraction, that's a duplicate of the garden of oranges, likely (didn't check the russian text, but the location is it)