I sold Steam keys on Ebay. Buyers, yeah there were loads of them, bought the key, claimed they been hacked, redeemed the keys. Paypal compensated me with a goodwill payment that did not cover my losses. I payed for either malicious buyers or buyers idiocy.
I've got Just Cause 3 steams keys that I'll sell for .016 BTC , or LTC. I was selling them on Ebay but so many people bought them, redeemed the key and then reversed the charges on me! I had to stop. I lost a ton of money.
Anyway, if someone does purchase, please post back any feedback here. I have multiple keys.
Just wanted to report that with my 750ti Asus I can get a marginally higher hashrate when mining (scrypt) with x86 Cudaminer as opposed to x64. On Windows 8.1 64bit. Running bios mod, overclocked 130 clock and 577 mem. Hashrate now hitting 320khs as opposed to a 315khs average before. Also, before the bios mod I was hitting around 280khs.