This is not a SFW instance. NSFW communities will be tagged, and efforts will be made to keep SFW communities clean, but proceed at your own comfort level.
There are no entries in the certificate transparency logs for these intermediates in that period, indicating that CT-enforcing clients like Firefox, Chrome, Edge and Safari could not have been attacked.
I wonder if they didn’t read this section:
or if they did read it, but don’t trust it.