I am rather fond of the Southeastern High Speed service between London St Pancras International and Stratford International (at least when I don’t forget the contrapeak concession doesn’t apply and get charged £6.10, as happened today).
Once things get more normal next month I would like to make a point of riding on it for fun (!) and I expect to get the chance as I will be working in the Kings Cross area.
It occurs to me that one cost-effective way to do this would be to travel to Stratford International in the off-peak using Oyster, and then return directly to St Pancras on the next train, tapping out within 30 minutes, which looks doable. I would happily pay £2.80 for that experience.
My question is, 1) is the intentional use of Same Station Exits in this way likely to be frowned upon by Southeastern/Revenue Protection, and 2) are the standard Oyster rules around treatment of Same Station Exits expected to apply to that line?