I’ve never known the Davos attendees list was confidential - it’s always been available in the past unless this is a new thing.
I’ve checked every year for the decade I’ve watched the WEF. It’s never been a secret.
AFAIK, the member list has never been ‘secret’. It’s always been known to all attendees, even to the ‘young global leaders’ who get one free pass to the event.
Given the numbers of actresses/actors, singers and wannabes who whore themselves to all those rich old guys, it’s just an adult version of a high school homecoming rally with benefits.
The carbon footprint of this annual event is probably greater than most countries in the world.