Why do contributors delete their own posts?


A significant contributor who shall remain unidentified deletes posts shortly afterwards. It’s not done with the intent of correction, but for the purpose of limited viewing. I wonder what rationale warrants this behavior. It certainly not for the benefit of providing context for later viewers who might want to learn from the thread. 
celander
You can not (rpt not) tell who was responsible for deleting a given post. That’s one of the subtleties of the system. 😬
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I've deleted several threads. I create a thread when I'm looking for component suggestions to listen to or when I think it will benefit the Audiogon community as a whole. When my thread turns into senseless arguing in lieu of stating opinions and supporting them, I delete my thread. 
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I just deleted my post after I realized that celander had already addressed Troll criteria by his, much better than mine, comment.