I see/hear what you’re saying about the time factor and the “what’s in it for me” issue regarding accepting friends/followers on Facebook, Twitter, etc. But my perspective, being a high school student is a bit different. My social circles in school are pretty limited. The social networks on the web allow me to connect with hundreds of people from all over the place. To me, that’s a good thing and it’s something I personally need in my life. So, at least for now, I continue to accept all invites, etc. because of the personal boost it gives me.
Thanks for allowing me to say my piece on this.