Hi, In the ID editor, how do I find out what user/when a node or way was created?
by selecting an object via mouseclick you get a button field in the down left corner insife iD editor “show in OpenStreetMap” or similar.
Click that button and the element will be shown via osm.org in detail.
Finally choose “view history” or similar.
(my browser has non-english language setting, so I cannot tell you the right text shown by iD editor … try on your own)