They've obviously shipped some of their chip orders. I can see why the lack of communication would be worrying for some.
They've shipped one (1) batch. I don't give a shit about the lack of communications, I'm vitriolic about being cheated by Yifu not delivering the group-buy chip batches I've bought as a member of those group-buys. He needs not to communicate to anyone, but he has to deliver chips in 10 weeks after being sent 10 mil US$ in advance. And he hasn't delivered them, and is now 15 weeks since he took those millions of dollars.