Adding a common operator tag is normally okay.
Deleting valid address point is not.  

It is appreciated that you would  abstain from editing address points or adding addresses to objects; this is a really complicated system.  I suppose the problem comes from the iD editor – the online editor on osm.org, used by new users – which shows text boxes for addresses and encourages new users to add addresses where they shouldn’t.

I will try to fix this.