Hi there
I have suspected for a little while that when a poster posts, and then changes their name later on, old threads show that name change.
So the thread might be started by "dimples" then at some later date they change their name, which changes it on older threads.
I hope I'm wrong but a recent link to an old thread clearly refers to the poster by a different name to the one shown. I don't think I'm making sense but I can pm you examples and you can let me know if I'm barking up the wrong tree?