I was on the 1351 Kings Cross to Cambridge today, waiting for it to
go. A passenger/customer got on and asked me if the train was going to
Letchworth, "Yes, I am going there too!" I replied. I can see why
staff get frustrated, the person went on and asked two other people if
the train went to Letchworth!!! Hey, would I lie if I was going to
Letchworth!!

Lots of passengers are ignorant and disbelieving. I have seen staff
tell them where a train is going only to get a reply, "Are you
sure?"!!!!!!!

It doesn't matter how much information is put out about the
destination of a train, there will always be those that are so
ignorant they won't see it!