In message
p.homeip.net, at
13:07:00 on Sun, 7 Mar 2010, Paul Cummins
remarked:
If you go back and read the original post, you might now realise
that your reply at that point was completely useless, because they
were extending a travelcard beyond its validity...

Which also gos to show that the system is wrong, because it can't easily be
understood by the reasonable man.

The system may in fact be the least-worst answer to the problem it's
trying to solve - but the way it's been implemented/described/publicised
is clearly "not fit for purpose" to coin a phrase.

--
Roland Perry