There is a difference between BYC and the 3 sister sites. BYC is so huge, that it has some different settings and procedures. The 3 sister sites seem to be identical copies of each other.
I don’t quite remember what’s different, but I remember the staff saying something about the difference at the time they changed servers in May of 2017. And I have noticed over the years that there are some things I do here that I cannot do there, and vice versa.
Another thing I’ve noticed is that when a sister site goes down, all 3 go down but BYC doesn’t. And when BYC goes down, the sister sites aren’t affected.
