You read a thread to what you think is the end, post a reply, then only after that see there is another page which you didn't see! This seems to happen to me a lot!
If it's a specific reply to someone I try and quote so it doesn't matter so much. But generally, no.
So do I. But often someone else makes a post that refers to what I'm saying in my reply and then I need to change it. This happens to me at other places too, not just jere.