Hi there,
I play ESO with my girlfriend and we mostly play together. Our characters have Rings of Mara, and we've worn them even though we're past lvl 50 and well-advanced into the Champion Points. We love the Rings of Mara concept, but continuing to wear them is a huge sacrifice considering what rings do, particularly in the end-game. Considering what they are, they really should be wearable over other rings like Crown costumes are worn over armor. While my girlfriend and I love the Rings of Mara, and we always play together, in endgame stages, continuing to wear them hamstrings us greatly. The Rings of Mara are a wonderful concept, but I think most people will choose to wear other rings, especially after a while, so the point of the Rings of Mara will be lost. I think a lot of people would be very happy if this change was implemented.
Thank you for reading my suggestion.