Mizter T wrote:

I have a few times on the Stratford branch. Perhaps that's also because
Stratford is a nightmare for knowing how to use Oyster correctly when
interchanging (especially from tickets).

IME there isn't really an issue here - at least there isn't a
technical issue, the issue is with regards to people getting
unneccesarily worried about it which is understandable as there isn't
any guidance.

Well I think that makes it a problem if the conscientious visitor (or for
that matter someone such as myself when arriving on mainline on a paper
ticket and transferring to Oyster there) can't easily comprehend it so that
they can have confidence they've used it properly.

In other words one does not have to use the interchange validators
whatsoever if one is merely interchanging there as part of an overall
PAYG journey, but nothing bad happens if one does.

Ah. I'm also thinking of exiting the station - as well as the double
barriers to get out of the Jubilee line there are also platform readers with
signs that imply that all PAYG (or any Oyster) users must touch on them.

(It's worth noting that these interchange validators - i.e. within
gated stations - are set up differently from those in use elsewhere at
ungated stations on the DLR and indeed at a number of LU, LO and
National Rail stations - the latter are set up as entry & exit
validators, and once you've touched on these the system will regard
your journey as either having started or finished.)

So do they allow one to actually finish a PAYG journey? Supposing one is
travelling from Bow Church to Forest Gate, starting on Oyster but switching
over to a paper ticket for the last stretch of the journey - will a platform
reader end the Oyster section?

And for that matter do the Jubilee barriers work to both interchange Canning
Town to Leyton and finish the Oyster section of Canning Town to non-Oyster,
or does the latter require touching out on the platform barriers as well?

Many (inc. Paul C) have said that better information should be
provided - I suspect the basic problem with providing this information
is that it might assist people in working out the potential loopholes
that are inherent with interchange validators, something I've hinted
at in the past though I note one contributor to this ng recently laid
it out in a straightforward manner. In other words spelling out
exactly how they work will assist people to abuse the system.

So instead it encourages people to get confused and make mistakes because
they don't know and can't find out how to do it correctly?