Do you have an example of a legitimate post that was removed?
No, because I don't make a habit of looking at posts and going "hmm, that's going to get deleted! Better make a copy of it!" (except in the case of actually bad posts e.g. trolling etc.

The most ironic one though. I tried to explain (to some troll in vain) that with some long winded posts earlier in the thread I was simply trying to be constructive and help others out. Deleted as non-constructive.