Being able to have a song start playing when people go to your profile old school MySpace style would be cool too! I’m hesitant to suggest this, but clients could offer an explore-like page where paying subscribers get featured, or where you can feature a post per month or something. Also some sort of shop page in client would be rad. I would pay for a spot on a shop page for my art. Maybe people still have to leave the client to actually purchase, but a featured product page of some kind possibly?