"Wilbur Hubbard" wrote:

I don't reply to top-posters other than to tell them to stop it. It's
rude and not in compliance with accepted Usenet etiquette.

A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing on usenet and in email?

-mhd