Actually , no one should trust any online identity. so it will not matter if that identity "X" changes to "Y".
(By not trusting , I mean you should be neutral, it does not mean distrust. )
you obviously don't trade here, plenty of physical traders here spend 10's of K with each other regularly. shit I've done deals worth $100K plus multiple times without escrow - you trust who you know, hence why buying a rep is such a bad thing
This. I've known many of the physical bitcoin collectors for years. I even trust some of them with my priv keys.