The feature that allows you to edit your posts is undoubtably useful - it allows you to correct spelling mistakes you might spot after hitting the "post" button, or to add further information to the first post in a topic.

However, there are some users who abuse the facility by removing all text in a post, making any subsequent replies meaningless and following the thread difficult.

I would like to see something implemented to prevent this, but I'm not sure what the best approach would be:
- stop all users from editing their posts
- lock all first posts by default
- prevent editing of any posts which have replies
- allow additional text, but original post text cannot be deleted?