5 months means 97% of the intrinsic value of a mining machine. By delaying 5 months, Yifu Guo essentially take away the 97% value from this program.

And I am very sure that this is intentional. They have planned this. They don't want to hold their words from the very beginnng. In the early time of this year, I talked with Xiangfu, a well known developer close with ngzhang (张楠庚）and Yifu team. He has tens of FPGA, but he just sold it on the market. I asked xiangfu why and he told me "he does not pay his attention on the trade-in program. (我并不关注这件事情。）" And I think xiangfu must have very early message from these liars that they planned to deliver the trade-in machine at very late stage, essentially destroy their words to the early supporters.

From Yifu Guo and ngzhang (张楠庚）, I learnt how low a fucker can be. Liar. Scammer. Greedy.