Only when you want to share an answer with others.
Rooster Cogburn commented 6/21/2015
On Blurtit, to "Blurt" an answer means to share the answer with your own followers.
Rooster Cogburn commented 6/21/2015
If you're familiar with Twitter you can kind of compare it to a retweet, which is where someone on your timeline tweets something funny or interesting that you want to share, but give them the credit, so you click the "retweet" button and the tweet shows in your timeline. The same goes for the "share" button on Facebook.