That's because you aren't following someone like Sean Bonner (Wil Wheaton got 10k people to follow him) who sends random picture and posts tidbits of info every few hours or random geek celebrities that who got over facebook and twitter and constantly hop to the new social network.
As long as Zuckerberg is an an enemy of Google then no.
Key term you used, "follow."
I don't twitter. I don't buy into this concept of "following" strangers or reading blogs.
To me, social networking, friendslists are for containing lists of people I actually know so we can easily share correspondences with each other. it's more efficient than sending letters or email.
I personally know everybody on my PS3/xbox friends list as well.
Technologically, I think the problem with these social sites, is they each invented their own architecture for interconnecting people. Unlike smtp, IRC, or usenet which were protocols for communicating to others, without a static, hosted intermediary.
If there were open protocols for setting online status, sending instant messages, putting up a post, and initiating a multi-user application, then FaceBook and G+ would simply be clients to that protocol.
The challenge is, many of these activities require the data to be hosted somewhere, and it usually helps that it is centralized to all the users of interest. Your email provider probably wouldn't mind hosting your online status (it's less than 1K of data if you include a comment). But they probably don't want to host your lifetime of status posts. Plus, most people don't want to be tied to their normal ISP's email. But google, hotmail and FB already corner the market on centralizing that (google especially).