Not strange at all. When I asked where the posted reply to the originators post was, I was told by Gene that he deleted his post made in rebuttal. With that post now removed, my post made no sense so I deleted mine..... which also deleted all the posts that were tagged to it. This has happened to me previously and because of it, the threads sometimes take on a completely different meaning. My suggestion.... if you make a post.... leave it.... unless it has offended someone and on second thoughts you think it is best to delete it. Having said that, if the thread then takes on a different meaning, one could expect a domino effect to take place as others remove their posts.