Re: Updated signature line
Displaying my ignorance here: I imagine signatures are stored separately from postings by the forum software. (The forum is a huge database of different components that get linked together depending on what the user requests.) When a posting is assembled, the software grabs the signature file for the poster and appends it to the post. New sigs replace older ones in the database.
“Often bumpy roads lead to beautiful places. And this is a beautiful place.”
— Dave Martínez