Here (https://instantview.telegram.org/contest/pikio.pl/template15/issue2/) you asked for a page that would present a label instead of a source as caption, here it is and it took me just a quick research.
- “Promotional materials” — these clearly can be inside <cite>.
Not only a clear copyright holder / author name can be formatted as media credits. Check this link for example: https://instantview.telegram.org/contest/bellingencourier.com.au/template26/?url=https%3A%2F%2Fwww.bellingencourier.com.au%2Fstory%2F5855094%2Fewe-are-joking-check-out-these-weird-and-wacky-ways-to-keep-your-pet-cool%2F%3Fcs%3D2919
- Declined by admin
- Type of issue
- Author added their own content
- Mar 24, 2019