last time i tried to buy some 6990s, i lost over $800, where a guy was selling a few 6990 and couldn't provide any transaction feedback and was also a new member. i think after that event and thread i started, i noticed all potential buyers on here started demanding proof of ownership of the items or prior transaction feedbacks. to anyone interested in these 6990s in this thread, the seller did say he was willing to take paypal, so just pay with your credit card through paypal and you're safe for the most part. OP, in case you decide not to take anyone's advice on here, then you're probably better off just trying to sell it locally in person. you can refer to these threads regarding different people using 6990s to scam:
https://bitcointalksearch.org/topic/confirmed-scammer-user-leon-29636
https://bitcointalksearch.org/topic/selling-dual-6990-mininggaming-rig-29710
Topic: 419 - page 2. (Read 2476 times)
Sarcastic and rude replies probably isn't the best way to find customers here. 
I'm not sure if this guy just read Mouse's reply the wrong way or if he's just an Rtard to begin with, but her answer was pretty much spot on.
really? thanks for the tip. i'll be sure to PM you when i need some more advice from you.
you could always drive to chicago if interested.
Sarcastic and rude replies probably isn't the best way to find customers here. you could always drive to chicago if interested.
no thanks. will wait it out for a local cash sale if i have too.
Oh wrd, that's probably your best bet to get these cards sold fast.
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