I see that a user can create topics and replies but, it would seem, can delete only replies. Is there anyway that the creator of a topic can delete it?
If a user deleted his own topic, it would mean all replies would have to be deleted too. What if a user posted a topic, and there was a lot of replies to it, like a heated topic, then one day they deleted the topic, would you want that to happen?
Deletion of topics is left to the admin and moderators.