Why is this being stated as if a person is required to update LinkedIn with their current employer? What employer is pressuring new hires for an explanation on why they haven’t publicly claimed their new relationship status?
I don’t often update LI, but your phrasing of someone having “elaborate excuses” means there’s pressure from an employer (or coworkers?) for an LI update before anyone could even receive such “elaborate excuses” … and that’s just plain weird.