In this ever connected world, it is pretty easy for anyone to say anything or to be anybody.
In the real world, you can tell a lie and as long as the person that you told it to does not have the ability to easily debunk it, you can get away with it for a very long time.
‘Oh yeah, I met so-and-so at $vague-venue in vague-year’ is pretty much impossible to prove or disprove and in general the onus lies on the recipient to prove or disprove, or to just accept and wonder.
Obviously the liar has to remember all of these lies and this requires either a brilliant recall of the lies that have been told to who, or it required that liar to simply not care.
In the real world a liar has just the stories to bolster their ego.
Of course there are some famous cases of people telling lies and getting away with it for year, but in general it is pretty easy to catch out a liar in real life.
The on-line world though makes it way more difficult and potentially a whole lot more dangerous, but I would like to propose a system that helps to catch people out.