Disallowing users from being able to delete lead posts is a good idea, that was a problem on the vb forums - if anyone wants to drop what they said, the edit function accomplishes that. Would be convenient to be able to edit titles too...
That is not an option. It has been suggested and hopefully it will be added to a future version. In the meantime, I can edit thread titles. At least we can now edit posts. Added: there is an addon that allows the original poster to edit the title. I'm going to wait until the forum is updated before adding it.