As a long time Travelcard user who has "converted" to Oyster, I do find
it *very* difficult to remember to touch-in at places like DLR stations.
Not helped by them hiding the points. If they could be bothered to
provide gates, it wouldn't be an issue.

I dont know whether the railway group standards extend to the DLR, but
http://www.rgsonline.co.uk/docushare...2/GIRT7015.pdf
requires that all gate installations are monitored at all times, and
most DLR stations are unstaffed.