Power Down?
What exactly does the "Power Down" link do, what currencies are the payments in, where can they be cashed out / used? Is there already a FAQ compiled? Why not? What's the meaning of life? Why am I so alone? Will I ever beat Level 4? These are all important questions!
There's some good information on https://steem.io/ that should answer a lot of your questions.
As to Power Down, see the comments here: https://steemit.com/steem/@nenad-ristic/what-is-power-down (And don't be shy to upvote comments you find helpful! :)
I believe payments are made in SBD (Steem Backed Dollars) which are a smart contract which can be redeemed for $1 worth of Steem, 1 week after the redemption (you request to redeem it, and a week later you get $1 of Steem at the market price). If you don't want to wait a week, there is a market you can trade the SBD on to cash out immediately, depending on how many people are willing to trade at that time (you can try to make money by buying impatient people's SBD at a discount then waiting a week to redeem it yourself for full price). You can then take Steem to some exchanges (I know OpenLedger lists Steem, maybe others) to sell it for BTC, which can then be sold for USD.
The meaning of life is that we are all sentient, creative beings here to co-create the world together for our own individual and collective enjoyment.
You're so alone because you haven't found someone to complete you.
I'm sorry, but level 4 is a trick, and cannot be beaten, so no.
I have no idea either. did the links helped?