I agree that there should be empirical evidence before implementing a change like this. Also, it's configurable in steem-engine tokens and (soon) in SMTs, which means different solutions can be tried and compared. Finally, setting @likwid as a beneficiary makes it effectively, 0 days anyway (minus a small fee). I can't imagine why this would be a priority for anyone.
RE: Does the 13 week powerdown period prevent investing in STEEM?