In addition to those two discussions (Aug 2017, 218 comments) & (Sep 2017, 239 comments), the following came up this week:
Disabling the Intel Management Engine | https://news.ycombinator.com/item?id=15444607 (Oct 2017, 219 comments)
If nothing else, the BlackHat talk has stirred up interest in the Intel ME which had remained in relative obscurity for quite some time.
Being able to run unsigned code in ME might allow (depending on how the exploit works) for either a replacement of the ME firmware entirely or just doing a disable that exceeds even the HAP bit (and the rest of magic that me_cleaner does to remove different sections of the firmware). But we'll have to wait for the slides, I'm hoping there's something really useful there for the coreboot community.
Well, it might also allow for the ultimate rootkit hack of x86 platforms...
Disabling Intel ME 11 via undocumented mode (ptsecurity.com) https://news.ycombinator.com/item?id=15116719
How to hack a turned-off computer, or running unsigned code in Intel ME (blackhat.com) https://news.ycombinator.com/item?id=15298833
Personally I am extremely curious about the upcoming blackhat presentation. If it is really true this might be very big.