Prevent user from deleting blog

[Joe Meadows]

Hi,

When a new user registers at our site we use AAPP to create a new Roller 
user and a weblog.  The user and blog are both created using the user 
name of the new site user so that new-user's blog will be 
http://oursite.com/roller/new-user.  I've also set groupblogging.enabled 
to false. The problem is that the user may delete this default blog and 
then create a new one using any available handle which we'd like to 
prevent.  Actually, it's fine if the user wants to delete their blog, 
say to get a fresh start, so long as the recreated blog uses the same 
handle that we originally designated.  I haven't found any configuration 
options that can help with this, are there any settings or workarounds 
that can help with this?

TIA,
Joe Meadows