Nos did this already. We only show some avatars of people who follow you and then when clicking in to view it’s only mutual followers. 

For individuals this is not a big deal but for organizations where they are looking at metrics I definitely get questions. https://image.nostr.build/0a90d67bad321767f15384995f5ca2e7ee71e085ba8a90dd9c2ca1464b7246c9.jpg 

https://image.nostr.build/0d266bca9cc66c56743fc08b867452d94047ff9c6dabdddb4264292c80b51130.jpg