Please make the default privacy settings for migrated images initially to only me rather than the current default which is Public. Even if the set was public on Flickr. I don't want to spam people's stream on G+ with my migration.
Teo Romera commented
This is much needed.
Not only that. I migrated photo albums from as much as a decade back and G+ applied facial recognition and emailed my contacts with those photos asking if they wanted to tag themselves (many times not the right person). Part of the problem is with G+, but if these were transferred as private (Only You), it wouldn't have been an issue at all. I don't even know who was emailed what pictures! Blegh.
David Boyle commented
Yes. I'm worried about spamming people on G+ with a big migration. Perhaps I can find a G+ setting to turn off notifying people about new photos until after the transfer is complete?