I must say this is just great step in terms of SEO. Site rank will climb up fast. Though backlink from twitter and quora is nofollow. But its gonna help to boost up the DA a lot. I bet if everything goes fine, it will increase by 1-2 points.

I am not a good writer, but I'll give it a try. :)

Btw, I have a question. Should we have to use the question as title? Or we can use our own title?