Ok, Were we hacked? Yes.
For a number of hours canta-per-me.net was pointed at 22.214.171.124 - part of the public record at https://viewdns.info/iphistory/?domain=canta-per-me.net - Amazon cloud means we are unlikely to get data on who the hacker is. They are most likely NOT british, though...
Been pretty successful at recovering public posts so far, PMs are more iffy because some information WAS completely deleted - if all members of the conversation were deleted - and some was partially deleted - if some members were still valid after the accidental purge.
If anybody has been...
I will be resuming working on the post reclaims now.
Working with @Lorde-Kowz , I was apparently not able to revive any private messages. Users not effected should be able to add re-created users to any conversations they still have - if they have them.
It looks like Some private messages were saved - if any of the recipients were not deleted, I'll be able to recover. The cache format is harder to work with. Hopefully I'll have time to figure it out on the 26th - thank you for your patience.
Right after a Xenforo 2.1.6 Patch 1 update ... MAN I screwed up.
The intent was to delete users with no posts that hadn't logged in in 2019. And restore from the backup I had if it didn't work.
The result was deletion of users with any number of posts (because bad defaults and can't read) that...