Some of the posts that were in the news were something like 10 or more years ago. If statutes of limitations apply for actual crimes there needs to be a bit of common sense applied to things on the internet that sticks around forever, and general attitudes and behaviour have changed a lot.
Some of it was pretty offside, so maybe worse that hasn't been publicized, but have little faith it will be a fair investigation and not a witchhunt.
I guess released members wouldn't have to worry about administrative actions. Would RM actions for something that happened 10-12 years ago even make sense? I suppose the admins of the group could face consequences for not deleting those posts, even if they weren't the admin at the time they were posted.
So, my understanding of the situation,(I am making a few assumptions here, but they are based on my experiences with the military).
-This group has existed for 14 years and is likely a private group for the CH of O JR Mess.
-Various inappropriate posts were made (some of which were made 10-12 years ago)
-Screenshots of those posts were taken.
-Someone reported the content of these posts to the C-of-C and investigation commences.
-Admin in the group likely purged the account as soon as they find out that something is happening (Assumption, but it would be a likely COA).
-Investigation and corrective actions take place.
-Someone with access to the screenshots sends them to the media.
-The media sends them to the CDS.
-CDS orders investigation.