Mining will be dead for ETHF. You can mine ETHC.

You can mine ZEC instead.

For now around 4,900,000
42% of them are out of the market, in the POS mining pools
About 300,000 were lost in the airdrop by users who lost or copied the seed wrongly.

You are too late the bounty campaign is already over few months and this was done by another member.

https://bitcointalk.org/index.php?topic=1694368.0

I'm still very unclear of the odds of it actually happening. Vinny Lingham had some interesting insights earlier. https://vinnylingham.com/the-power-of-the-invisible-hand-56efaedfb544#.19bmedhhn
It seems it was pretty controversial, so I'm just reading his follow up.

Just make sure you have your keys. Blockchain.info lets you access them. Do it and keep them somewhere safe

ONLY     3,901,180    MIL coins

marcet cap $618,111    price $0.158442       tot sup. 3,901,180 btm

Bear activated?

Sell before they realized what happened and before Chinese exchanges wake up.
Do it quick.
Abandon ship!
The Titanic crashed into the iceberg!