The starter of the thread can go back and change the title of their original post. This changes how it will look when displayed under "recent posts" etc.Michael Farthing wrote: Changing the topic title won't alter the title of already posted individual posts. The title of future posts can be done by individuals themselves, as here we see.
For non-UK readers "I don't believe it" was the catch phrase of a character in a popular UK sitcom.
https://en.wikipedia.org/wiki/Victor_Meldrew