Crashj wrote:

A: Because it is the opposite of how a conversation is scripted.
Q: Why is top posting so annoying?

A: Top posting.
Q: What is the most annoying thing on usenet?

There is only one thing worse than top posting; that is not editing the
quoted material left before bottom posting. Usually a person is
responding to a single or couple points and only those points need be
left and then they can be carefully edited.

If the response does not appear in the window without scrolling, then
hit delete. Simple.