Power down is always a headache for any investor in steem because it takes to much time to recover all steem to trade that’s really not a good idea to attract investors. Because ath comes only for two or four days not for three months so every wants to sell but can’t because of power down features.
So why would any investor invest in steem, when they can’t sell when they want.
Really this idea can work 5%fee for power down.when we don’t have any transfer fee for any amount of transfer and This can also help to fight with inflation of steem supply