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but if you are talking about a new posts let say you made the comment today and checking back you can't find it again and no records of posts deletion and also if you check you history you fine it there, this type is a Forum technical glitch, just like it happens sometimes with your merits history, it's all forum glitches, but in reality your post were never deleted.
I have never experienced, nor do I remember reading anywhere about, such a forum glitch. You are saying you make a comment, it vanishes, theres no record of it being deleted, but then it shows up in your history?