The newest member bit is in my post above.
It's currently not approved by the phpBB mod team, but I don't think it will have any other effect on the board.
If your users can't see the profile (as they have not posted, and the user will not be displayed on the index, they will not know to access it, unless they guess the user_id and then and get in that way
I'll look at expanding the mod so that it covers the areas I can think about
dEf.