In reality I think the topic shouldn't be able to be changed (except in the case of a profane one). Once the topic is set all replies should reflect the thrust of what is mentioned by the original poster, that said, alot of people arn't specific enough in topics and usually just type "Help me" or whatever whch is useless. At times in the past I have been guilty of changing the topic mid-thread but only because I can, that said I could live without it.
