It's not only about "getting rid of ads"
This is about the purest form of "hacking". Exploiting the workings of a system in ways it's creators never intended it to work. It's not about efficiency or need, it's about style.
Here's a much earlier exploration of the same idea (shouldn't be taken too seriously either): http://asofterworld.com/index.php?id=194
If you want to get rid of the ads, use an offline client like Thunderbird, read your mails on your cellphone or get adblock. Whatever.