First, make sure you're proactive about privacy and security by using NoScript and a cookie manager. Head to a Blogger powered site, like this one. Marvel at the blank page! Temporarily allow blogger.com in NoScript. Marvel at the spinning gears… that just don't stop! Spin spin spin!

It's pretty poor form for a company as large as Google to require JavaScript to even load content, but to require a cookie? Madness.

In a related note, @hanezawakirika forwarded me this epic flowchart showing when to require Flash when loading a site. Same principle applies!