1 week power down will gives us this benefits:

• just think someone got financial emergency , he/she has good amount of sp hold in the account. This stored sp will help them in the time of need.
• An investor will be interested when he/she will see this opportunity of getting the investment back in short period .
• More steemit user will be power up in their wallet.

Limitations:

If your account gets hacked you got nearly no option to recover. Therefore you should not store your master password online or on your computer. Same as your keys for your Ledger or any other vault that stores keys, keep it offline and encrypted. In case you see an odd power-down that you didn't initiate you can immediately change all the keys.

We all need to take proper precautions about password. If we keep it securely in offline , then I don't think so it will be a big problem.