What is the point of this nonsense that under no circumstances can we talk about other jellies by name?

There are people who have disappeared from here.
I would like to know what happened to them.
No different than if I go to the gym to work out and suddenly somebody I know stops coming. What happened to them?
It’s only natural to want to know!
As long as nobody refers to them as assholes or something, what is wrong with asking if anybody knows what happened to them?
It doesn’t have to be complicated. They died. They got married. They simply stopped participating.
What is the problem with that.
I don’t get it