Uploading photos of my students and tagging them for parents are extremely useful but can also be time consuming. Would you consider adopting some facial recognition technology? So that when teachers open each untagged photo, there is a button for automatic facial recognition and name tagging (and for @names only, not for #lessons). Teachers can also choose to tag them manually, but having that automatic feature would help tremendously.
I understand that cyber security would be a huge issue to consider here as technology from a third-party might need to be introduced to view and process the children's photos. If that can be dealt of properly, this feature should make teachers' work with TC a lot easier.