jlrogers±³© wrote:

Why do most newsreaders , including Microsoft's "Outlook Express" default to
top posting?

Most do not. Only one that I am aware of does.

The reason is that it was designed by people ignorant of 30 years of
usenet conventions.

Fortunately, you can change the configuration and never be accused of
being a "top-posting ****wit" again. (not my words, btw)

//Walt