Hi Urzum,

Welcome to OpenStreetMap! Nice to have you around improving the data :-)

Do you already know the wiki?
https://wiki.openstreetmap.org/wiki/Beginners%27_guide

There us plenty options to get in touch with the community:
https://wiki.openstreetmap.org/wiki/Join_the_community

Your changeset popped up in a quality assurance tool, I frequently use.

You added a house in Romania and at the same time changed something in UK.
The change in UK was not on purpose, I guess, but this happens easily in iD, unfortunately. I will repair this, so no problem. Just take care next time :-)

That's the node you moved (and you merged the street with an underground stream), see the column with you user name:
https://osmlab.github.io/osm-deep-history/#/node/2110405572

Best regards 
Metzor

