I don't agree. If you start to think about what could disrupt LinkedIn, you realize that there's a good chance it could look like About.me. I bet in 12 months, About.me will find some direct competitors. This is a big opportunity IMO.
Every time I get one of these emails I come a little bit closer to closing my LinkedIn account. A LinkedIn replacement in the form of about.me sounds pretty appealing right now.
http://i.imgur.com/M1UwlnH.png
upon DOM inspection it says "A Tag can consist of letters A-Z, plus, space, underscores, hash or dashes."
That aside it's a very slick website
edit: apparently you also can't edit an experience name. It looks like it changes when you save but when you refresh it it goes back to what it was before.