Change to forum rules re. multiple usernames

Quote:

You may not post messages using more than one username in the same thread. Those found to be doing this are liable to be 'named and shamed'.
(NB: Some users have separate forum accounts for use at home and work. So long as it is obvious that it is the same person then both accounts may be used to post to the same thread. You may not lend weight to your own arguments by posting under multiple names/personas.)