First question, who is still mining this? Second question, how did they get compromised, and the most important question, who went through all that trouble to steal something so worthless? Can these even be exchanged?
1st Answer: These Guys
https://bitcointalk.org/index.php?topic=450381.02nd Answer: User's own Fault, they use a sharing software to share the Bootstrap,
(Not Smart on their part,with so many file sites are free)The User somehow put his wallet.dat in the shared link for anyone to access, must not have been encrypted either, completely user error.
(Info was gleem from the reddit link, accuracy depends on its info being accurate.)3rd Answer :
# Source Pair Volume (24h) Price Volume (%) Updated
1 Poloniex MINT/BTC $ 174 $ 0.000081 68.82 % Recently
2 BTER MINT/BTC $ 36 $ 0.000081 14.38 % Recently
3 BTER MINT/CNY $ 34 $ 0.000082 13.57 % Recently
4 Cryptopia MINT/BTC $ 8 $ 0.000081 3.22 % Recently
5 Bleutrade MINT/DOGE $ 0 $ 0.000077 0.01 % Recently
6 Bleutrade MINT/BTC $ 0 $ 0.000095 0.00 % Recently
7 SouthXchange MINT/BTC $ 0 $ 0.000102 0.00 % Recently