Originally posted by igorw here: http://area51.phpbb.com/phpBB/viewtopic.php?f=108&t=41767
If a user receives a PM but does not have permissions to respond (for example: he just signed up) this is kind of bad. The person sending him the message implicitly gave him permission to reply. It might make sense to always allow him to do so.
How can I stop getting PMs from that annoying guy?
#Report him to have him banned
#Add him to your foes list, this should disallow PMs from that person (it does currently not)