Is there a lot of these unshared fares that people get and I just don't hear about it cuz I don't know anyone? Or are these extremely rare and usually show up on FT?

Edit: Flight was a joke many are now saying. My post wasn't intended to be Lucky or blog specific, not that big a deal what he does or doesn't do; just wondering more about how often do mistake fares come along and what percentage end up on FT while active?