Help page section on policy on removing a requester's access to a response to their request

[RichardTaylor]

Following the conclusion of the now private discussion at https://github.com/mysociety/whatdotheyknow-private/issues/88 we should say something about this subject in public. (I don't think it is concluded yet)

The appropriate place for a public note would be:

https://www.whatdotheyknow.com/help/how#information_removal

A note on the help page could lead to blogs, tweets or other activity.

We might want to address how we deal with non-FOI correspondence.