Social Connections

So right now there are social connections for tying your account to Twitter, Facebook, Instagram, Youtube, PSN, and Steam

I don't see anyway to interact with these connections other than to launch a separate window that takes you directly to their outside source. I think it would be kind of cool and useful for those interested to be able to publish things from your activity feed be it a new achievement, new badge, new game completion etc. directly to those accounts if we wanted to.

Also curious by it's non inclusion is a connection to Twitch with its integration into the Xbox One. Also for those us who use Tumblr it would be nice to be able to have a connection and and ability to publish to our account there.