You should really set it up. Not only is it good because it is another place people can learn about you, but the best part is that you can write in your bio about who you are and what you do and then you can simply highlight some text that is relevant in there and link to it. Further they ask for you to add links like links to your websites! I added links to my blogs, a squeeze page, and my Twitter account! Yes, I could choose the anchor text on those links as well!
It is truly awesome and absolutely free and it takes just 5 minutes to set it up!
Yes, I also checked and they are not using the nofollow links or any funny business with the linksh that I could see. It looked like a regular link that should give you some search engine boost as well!
I setup my profile page just a few minutes ago and just Twittered about it with a link to my profile page to get it indexed fast so I can start seeing the link benefits fast!
This is really cool and you can't beat a free backlink from a majorly high authority website! Let me know your thoughts on this!