And in my opinion they are more suited to be added as single node instead of circular way.

I don't think you should name the trees :)

You've added yourself twice to the map: changeset/57734576
Please delete one POI or merge both POIs to one...

You've added yourself twice to the map: changeset/57734116
Please delete one POI or merge both POIs to one...

I moved it from the building to its own Point of interest. Or do you really occupy the whole building?

See: changeset/67133085

Es sieht für mich eher so aus als hätten die den Namen in den letzten Wochen ein paar mal gewechselt :)

Why did you add yourself twice to OSM?

It would be great if you'd have added all the Dior shops with their phone number in international format...

Ok, danke für die Klarstellung.

Das Institut für Medizingeschichte ist schon beim Institut für Anatomie eingetragen...

Please don't draw buildings over already existing buildings!

Please square your buildings, it help much more!

Please square your buildings, it helps much more...

Really, triangular buildings?

It would be nice if you square the buildings you draw...

Please don't munge several buildings into one. And draw the buildings as squared rectangles. Like this it doesn't really help...

Please draw square the buildings!

Please draw the buildings only once.

Please draw square buildings, like this it doesn't really help...

Could you please 'square' the buildings?
Here's a help page on how to do this: https://learnosm.org/en/hot-tips/tracing-rectangular-buildings/