Hi Sylvia:
We’ve tested editing on the forums and we were able to edit both the title and the topic, even after someone else has replied. You should definitely be able to do this if you are logged in.
It isn’t possible for users to delete threads, since you’d then potentially be deleting responses as well. This is not something we can change about how the forum setup works.
However, admins can delete threads, so if there’s something you feel should be deleted just let us know and we’ll take a look.
Thanks for your input.