So far as I can tell, there are no forum rules on the copyright of members' posts and, if that is the case, then I assume posts are covered by general/ "outside world" rules.
I note that, whilst we are members, we have the (continuing?) ability to delete what we have posted and I suppose that is fair enough - he said, having deleted one of mine this morning when I belatedly spotted it duplicated someone else's!
However, I think it's a shame that one can apparently delete one's topics, especially with a view to leaving this history forum and ceasing to be a member. Having willingly shared historical information for the benefit of all, the sharing is rescinded and everyone is dis-benefitted; the information almost ceases to ever have existed. It's not a very accurate parallel, but had the information been given verbally, it would still live on with those sitting in the forum after the speaker had got up and left.
I wonder then, whether a condition of posting here should be that copyright, and by that I mean the right of read-only access, passes to KHF (.com). Of course, we have had the case where the forum itself "leaves", taking all (eg. Bilgerat!) topics and posts with it; I certainly don't find that acceptable either, so I'm at a loss to know what the answer is...