Here's what I think about the refunds,
I figured the assembly was done for USD, but the avalon chips were done for BTC,
I've spent 5.5 BTC ($550USD roughly) on assembly, and another 5.5BTC for avalon chips, a little transparency would go a long way for sure, but I'm pretty confident that SB immediately converted the BTC I sent him to USD to pay for parts and the assembler, so I expect this:
I get back $550 minus a restocking fee in current value BTC back for the assembly, and I get back the 5BTC from Yifu for the avalon chips, I think that's the most fair and nobody will lose their house.

I screwed up twice, the first time I got caught up in the huge difficulty increase and spent BTC on the most promising looking hardware, instead I should have done the math and waited.
I screwed up the second time asking for a refund, the smartest thing would have been to start hashing, see what I make with the units, and sell them on ebay and probably make back all my (USD equivalent) money.


I knew it was a risk, but SB really dropped the ball with his lack of transparency, I'm not asking for a long story or a forensic accounting of his business, just keep us in the loop, a short update every now and then would go a long way.