I recently tried to send a private message to clear up a misunderstanding, and saw the following:
Small British Shop Owner, you do not have permission to access this page. This could be due to one of several reasons:
Your user account may not have sufficient privileges to access this page. Are you trying to edit someone else’s post, access administrative features or some other privileged system?
If you are trying to post, the administrator may have disabled your account, or it may be awaiting activation.
Is this because I am a guest, or am I doing something wrong?
If anyone is interested why, I believe it was because a comment of mine, the penultimate post in the thread Rico just closed, was misconstrued as talking about illegal activities when I was asking what the Home Office (British equivilent of quite a few US departments) could authorise one to do.