Hi, thank you @aviation0178 for contributing to OSM, and @Hellmap for your welcoming messages !

Just a quick note: while putting source=* tags on objects is not often useful or encouraged for the reasons HellMap put forward, using it on changesets is definitely useful and encouraged.

It allows other mappers to understand where does the change come from, especially in recently physically changed areas, where things may be visible in some sources but not others yet.

But more importantly, indicating the source of changes is a requirement of most aerial imageries. And a small token of appreciation of their work ;)

This source=* tag can be set just before sending changes from the iD editor you use, below the changeset message.