I agree that people should be notified when a topic is deleted, and we actually have two sections for topic removal. First is the Archives >> http://www.testmy.net/forum/b-9.0 -- this section is available to all
then there is a non-public deletes section, where really bad items are moved and only viewable by the testmy.net staff members, we try and retain all information posted by our users.
But for sure, members who have a post deleted or altered should be notified, and in the future will.