FCC at Kings Cross are absolutely ridiculous, announcing the platform for the Cambridge/Kings Lynn express less than five minutes before it's due to depart.
Five minutes. Luxury.
Before the new concourse opened FCC seemed to delight in giving passengers less than 1 minute to get from the main concourse to platform 11.
And then you would have someone moaning on the tannoy about the number of passengers clustering around the boards at the head of platform 8. Well tell us which platform the train is leaving from and we will go there.