I like the idea a lot. I think this could be even better and more potent if it was also complemented with a change to add the same 5 or 10% "tax" to author payouts when choosing 50% liquid, but none if they choose all powered up. Then users are more incentivized to choose the 100% Power Up option, making PoB more potent as a decentralization mechanism of placing more actual stake in users hands, while also lowering sell pressure from liquid rewards. Users could still choose it, but then that benefits HP holders.