Yes, it's low power Proof of Work and equitable power Proof of Stake.
The POW mining is strictly competing for the 1% TXFEE block rewards -- and is open to everyone who runs the wallet in that mode, REGARDLESS of number of coins held.
For stakeholders the staking period is 30 days for a 5% ROI per annum and follows the same coin-age weight rules as PeerCoin et al.
And you're right, the top wallet is Bittrex and they are not staking and with the exception of the Donation wallet, neither are any of the other SNF "GiveCoin" wallets either.
Bittrex had one hiccup and donated the ~400K coins they accidentally staked to SNF directly:
https://www.blockexperts.com/2give/tx/de25bd98cdd7833d774fb8e93a5808f39b5585913102c31904b95a2892f83ad3And SNF has tested POS staking on at least one other wallet to assure that "difficulty" would rise appropriately when a lot of staking blocks started entering the chain, but otherwise they all have "mint=0" set in their config files.
The smart move would be for people to pull their coins out of the exchange and keep them in their own wallets where its safest. Plus you don't earn interest on exchange accounts.
At the time of the V1->V2 swap Bittrex about a month ago, they held 272M! As of this morning it's closer to 165M
So I'm encouraged that over a 100M coins have been withdrawn -- some sent to other exchanges I suppose, but the bulk appear to be in individual holders wallets.
If you haven't read the white paper/value prop, I would encourage you to check it out:
http://bit.ly/2GiveCoinIt has a lot of information about what's going on and where we're going with 2GIVE.
There's a lot of stuff that is being shared on the FB page -- like progress with our mobile wallet and the use of the Gift* card system for social tipping and "air dropping" in the real world.
In the mean time, what other questions can I answer for you?
-dvd
Hang on, Low power?
I have top 15 wallet and quite a few are around the same amount of coins as me ALOT of coins are in exchange wallets (assuming they don't stake)
And I got 100 coins 5 days ago?
I understand how it works, So assuming the 180 mill odd wallet isn't an exchange or they are staking they would get everything and the rest of us just sit on our hands hoping for the best?
Riiggght