Why is the toaster running tag icons through a proxy?

Question

Toaster

Although not only icons, but almost everything =)
That's how

https://images1-focus-opensocial.googleusercontent.com/gadgets/proxy?url=https://habrastorage.org/files/5b6/200/e96/5b6200e965f048568eec7d4724705b85.png&container=focus&refresh=2592000&resize_w=32

Does it load faster?

Answer 1

https://gist.github.com/coolaj86/2b2c14b1745028f49207