Many conflate 'investors' with 'traders'. Anything longer than an instantaneous power down will not attract anyone actively trading crypto. Also, what percentage of day or swing traders would actually power up and use their STEEM power to participate, if they know they will likely sell it in the short term? What about delegations and their cooldowns? Odds are this proposed 'steem investor' wanting a quicker powerdown might want to actually delegate and get a return. Do the powerdowns for delegations also get shortened for the same reason? What would be the consequences of that?