Yes. 
Also agreed.  I have a sparse bare facebook page I maybe check once every 3 months, and I dont even have a myspace account. 
I dont feel I need some massive social network to keep in touch with my "friends".  No person has 500+ friends they keep in touch with on a regular basis.  If those people really were my friends, I would hang out with them, or call them, or IM them or something.  I dont need a website to do that. 
And yes, people who check their facebook/myspace more than a couple times a day need help. 
I hate it when people invite me to parties on facebook, but don't actually tell me about it.  That's a good way to NOT have me come to your party.  I check facebook maybe 4 times a year and ignore the emails most of the time. 
Yes 100%. When people actually open their mouths and talk to you that's a good thing.