Earlier quoted context omitted.
> Wouldn't be surprised, a lot of older systems - and the airline industry has a lot of older systems - worked with really tight and compact constraints, for which I'm sure there was a technical reason at the time. There was a story by a man named Amr whose name could never survive a trip through airline booking systems that encode the gender in the given name field: "SMITH/JOHNMR". His name would always come back as…
My initials are J.R. In the US, when these are printed after my surname, a lot of people think I'm Junior.
In Britain, including a dot after abbreviations is a bit dated — it's UK, USA, NASA, JG Smith Motors Ltd, Mr Jones etc. (American usage seems mixed; I sometimes see "USA" and "U.K." in the same sentence.)
That means "Dr Jones", "DR JONES" and "D R JONES" are particularly easy to confuse.