A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
Q: What is the most annoying thing on a mailing list?
Folks, I'm sorry, but the comment spammers send about a million more comments than real readers do and I can't stand the spam. I've disabled comments again. Feel free to respond to @miraz on Twitter or to email me through the contact form on the site.