Well, it's further proof that people are sick and tired of web advertising and invasive "networking/masterminding" garbage. I think this is a GREAT move for Twitter. It's a small social networking medium, not another avenue for more and more SPAM.
"Ebay is more hassle, but as long as you use paypal, you will be covered. If someone doesn’t send you something, you can claim the money back. And unless they can prove that they sent it, you will be ok"
COMPLETELY AND TOTALLY FALSE. Ebay and Paypal will SCREW you.
Only problem that I see is the advertisers will be pissed off. One of the reasons that I have downloaded shows from the internet (bt/etc) is because I am just sick to death of all of the adverts. I hate adverts. TV shows from bittorrent have the ads cut out. It's great.