You paid 210 for a PSU that costs 105 and you paid UPS shipping of 373.92 when it only costs 71.00? Man bud, you got butt slammed.

About Bitmain, they are leade in the crypto market hardware. I can not record they put a non ROI product on the market. There derive statistics are very close to reality. It looks they mis out on x11, but we have not the statics (like algoritme, pretty scarry for me neo  ). X11 will make ROI also i think beside the danger of 10nm closing in.

This answer kind of varies, the correct answer is no ..  but some people get scammed (sellers) unfortunately

Actually the answer is yes they can force you to take it back as long as the buyer is smart enough to figure out how to be a scumbag

Yea he said it was broken i told him it still had a 30 day warranty with baikal and he said he didnt want to "deal" with china and now it is my problem. He originally wanted to pick the miner up in person and pay me with paypal (then claim item mot received i assume) told him he could pay cash and pick it up but he refused hes basically just a scam artist POS

Maybe almost every  pre paid miner that people are waiting  for to be delivered  is mining right now, hence the difficulty increase more then expected not saying all but some would definitely be doing this to milk maximum profit before shipping. If this is true it may be a good thing as future batch shipments won't impact the difficulty as much. Also new x11 coins like helium will hopefully spread the hash rate around. Maybe digibyte will add x11 to its list of supported algos , who knows. It's still possible that some people may regret selling their d3s too soon or selling them now at ever decreasing prices. The evolution  dash updates due soon,  that should help with the dash price.

They will probably just open a new account unfortunately.

mining on nicehash seems to be a good option right now

Why do you say that? I'll kick mine over to see 
https://www.nicehash.com/miner/1ADjxn4jCV91izZJJtTR62UPfjw1PtsAZF