If that was only SPS funds distributed to proposals as it should be, I have no problem when witnesses or devs get paid.

But what you skipped, is that the steemit inc stake is in there too!!!

Why convert it to HBD? And distribute it to proposals, these funds have nothing todo with the SPS. Let the SPS pay for proposals with the 10% inflation received.

Or will the 10% inflation turned back into the reward pool?

Maybe there should be some solutions presented as proposals first, and let the community decide what to do with the 80+ million HIVE. It's strange to me, that the witnesses and devs, decide to pay themselves out this huge stake.