I think A Kill Has Been Recorded was a FB version of BW replacement, I think Trip finally had to let it go.
Actually Big Week was the original message board and test server name for the Air Warrior II beta back in 1996/97. It eventually became a NNTP Usenet newsgroup before Gamestorm was a thing and I think it got shut down some time around 2015-2018.
The "A Kill has been Recorded" Facebook group was started in 2008/09.
Edit: The BW NNTP went down a lot between 2014 and 2019 and was finally shut down at the end of 2019.
As per a FB post by Mike Engells on November 21, 2019
"BIGWEEK IS CLOSING
Per Trip (Steve Rawlinson):
'It's been more than 20 years since the bloodless coup that saw this dweeb become benevolent dictator of bigweek.
Two decades later I have sold out of both the internet companies I've been running since 1996 and will shortly be finishing the contract I have with the new owners. The server this newsgroup sits on is about to go to the big datacentre in the sky.
So, we need either to find a new home, or accept that there is no longer a need for a place for old air warriors to argue in the cold light of the post-fact era.
My suggestion is moving to groups.io, a web based service for discussion groups. I'll go with the consensus.
Trip"