"get stream as: markdown or atom"
What do I need this for? And what is atom in the first place? It sounds like something that only developers will understand or care for?
Also I don't think I need a Twitter share button. I never liked those. I do like signing up with twitter (or facebook, or google, or github or any of the other popular accounts) I am too lazy to fill out registration forms these days. So yay for having twitter signup button ;)