When you will be converting significantly high amounts of HBD, that 5% will become irrelevant. Because as you keep buying hive, the hive you bought earlier will have greater value in HBD. So it balances itself out and also be profitable.

What I mean about content rewards paid by Hive is that when network has grown to a certain point, layer two content rewards will be more interesting and communities will become self-sustaining. There will be no need for Hive content rewards. Hive will be needed to power layer to applications, communities, and economies and mainly used for RC purposes.