It's a bad direction for average users (not average professional photographer but average users).
Their mobile app has a sync process and touts it as a way to backup your photos. Synced photos are automatically marked as private and has NO impact on your desire of quality over quantity.
Flickr has offered free 1TB for a long time. Archival of mobile photos is the intended feature and you are shaming users for using it?
If they want to wall off average Joe from the pros, fine. It's their right. But they should not delete old photos. Storage is cheap. There's going to be lots of unhappy people when they log in a few years from now to find photos of some deceased family and realize SmugMug deleted them.
When SmugMug acquired Flickr my only comment on the article was in regards to the free 1TB (https://news.ycombinator.com/item?id=16888876) as I was afraid it works be on the chopping block. But I never imagined they would be as 'smug' as to delete old photos.
I will likely download the photos and stick them in Amazon Glacier or something.
As far as the rest of the users who are not tech savvy, best of luck to them.