I'm not an expert like franky1 or Lauda, but it certainly sounds serious to me. [...]
franky1 is not an expert. He is simply a paid shill. Now he is endorsing obvious fraud by Jihan Wu (Bitmain). So he seems to have criminal aspirations as well.
I didn't say their behavior is benevolent. I said they fucked up, meaning it was stupid of them to leave this backdoor in there, although clearly their intent was not malicious. [...]
The probability that the Antminer backdoor was implemented without malicious intent is exactly ZERO.
ya.ya.yo!