On GitHub’s image proxy

GitHub's main stated benefit for the proxying was to prevent things like this

  Proxying these images will help protect your privacy:
  your browser information won't be leaked to other
  third party services

Source: https://github.com/blog/1766-proxying-user-images (linked from TFA)

Don't build your business model on something where you are dependent on something you can't control. If you decide to anyway then walk away when the honeymoon is over.

GitHub, that's a crappy move.

BitDeli, well played with the phrasing of your notice.

Interesting to see the list of repos that were using this service.