My first reaction to the G+ Suggested User List? I don't think this is a good idea. It's going to alienate people and lead to an inevitable followers war that can hurt the health of the social network and inflate people's egos. As the famous get more followers, the non-featured fall farther behind, and a giant gap is created between the two. This is what happened on Twitter. (In a perfect world, all interact together, around common interests, and there aren't such huge disparities.) UPDATE: Google+'s VP of Product +Bradley Horowitz posts a thorough response to questions about the list, and it makes much more sense now. http://goo.gl/b1XMO
Marketers need to learn that good customer service is good selling. In a twisted way, you can see good customer service as subliminal advertising. Good experiences force people to talk about and recommend a product.