Please add Server admin limited by number & size (resolution + megabyte) user image galleries.
Linked on user profile page.
We can upload one, why not dozens more?!
Also, robust privacy settings if possible. i.e. select images or albums only visible to select lists inc. subscribed to.
Also, tags for albums & individual photos. Then a search option for only [photos/videos/music/bookmarks/groups/user/notice/etc].
Not sure if this should have been a separate "issue". I commented here, unsure if you'd see it, in hopes of having this baked right in from the beginning.
Part of my thinking is Piwigo+Pinterest/Pinry+Instagram/Pixelfed.
GS: One social network to rule them all.