NO, the common OSM rule is: Contact the user via changeset comment. This comments will be send to the users mail address too.
benefit: anybody can follow this discussion (PN is “private”) and eaven enter the discussion.
btw: i got this answer from talk-lt:
"Some admin boundaries, which have been added without proper
agreement with data source have been removed by the person who had
mapped them. Only outer ways have been removed without removing the
This comments will be send to the users mail address too.
Yes. But there are many people witch do not really read their emails. They use it only for registration or even they registered with google or facebook.
But if you send a message they will recieve notification both in JOSM and iD