Hearken! Caliga is entirely correct, it seems something went wrong during the split migration.
Interestingly, I came to make the same discovery today, for some other links. I thought it was only two coreboot posts mysteriously missing, but thanks to your post here Iโve been alerted to the fact that there may be more lurking, and through some crazy diffing of the complete RSS feed of both instances Iโve been able to determine that the following six posts are missing from the system:
I have thereforโ filed a ticket for our sysadmins to look into fixing the issues I have found hither. I trust that they should find a way to restore those.