1. How many passengers typically arrive on your busiest 12 car services into the airport.
I think the real problems start when something else turns up behind a rammed 12 car from Liverpool St.
Personally If I had to wait more than about 2 minutes for a ticket check prior to alighting at Stansted Airport I would simply walk off. If they chased after me, which I presume they would, I would proffer my ticket and railcard and mention that I have a flight to catch and can not afford to be delayed by several minutes. I wish people would do this, the aggravation it would cause might persuade them to change their attitude in regards to taking forever with their ticket checks, but sadly it sounds like people are simply putting up with this nonsense.
I would too, but the real problem is that there's such a mad crush that you would struggle to push through unless you could get all the people in front of you to join the rebellion
You'd have todo it by going up the exit ramp at the bay platforms, and they would be able to see you coming for a long time and be able to prepare to obstruct you.
It would be interesting if someone brought a court case for consequential loss because they missed their flight. My guess is that the operator would settle out of court because they wouldn't want precedent being established on what is reasonable delay in exiting a station
I'm imagining it would be somethign similar to what happened with
https://www.cambridge-news.co.uk/news/local-news/customer-sues-greater-anglia-delays-14406407 (man sues and getsa default judgement after GA play silly beggers and waste time) and
https://www.bbc.co.uk/news/uk-england-suffolk-43751468 (bailiffs force them to pay up).
(They would ignore you to make you do all the work, hope you got frustrated, or that the judge just didn't agree with you, or that your bailiffs weren't good. And then at the end of the line say "oh there was a bit of a mix up; it was an undefended action that we didn't know about so we paid up for customer service reasons [lies; once the bailiffs left us with no choice] and it would all have been different if we'd gone to court.")
My area of interest is more the opposite and therefore unfortunately more difficult; as others have pointed out there is a legal requirement to queue where you are instructed to, but clearly this can't be open ended as if it was you could be made to wait there for ever. Unless there's a precedent trying to find out where exactly that requirement ends puts all the risk on the person that refuses to queue. This is all the more so as the layout of the station and the nature of the humungeous crush at the exits makes it hard to claim that actually you did queue and you did show your ticket and you don't understand what they're on about.