I do not Accept friend requests from people I do not want to see my business or I totally do not know.
Yes, I have a ton of old classmates, even way back to elementary school! I have found old coworkers, neighbors..
We have the best time sharing funny stories about our families, interesting articles.. etc.. Some weekend nights we are all howling at the crazy things we are all talking about.. It has helped lots of us meet up more often than we ever did before.
Also just because you are "friends" on facebook, does not mean you are best friends, you are just friendly.
If you do not have time and do not want people creeping around your page, just do not accept them..
I tend to post a lot of info about what is going on here in Austin, so I ALWAYS warn people I post a lot and they may want to "hide" me so I do not take over their page..
Also a lot of people are on facebook, but never really post, instead their families send "PM" Private messages.. It is easier on FB than sending out emails if the whole family is on there.
If you want to hear from the people on facebook, just write something on their wall.. It is like the phone.. it goes both ways.
The younger people today, do add the names of the people they meet or work with etc.. I do not think it is so they can "LOOK" like they have a lot of friends, it is just a way for them to keep in touch with the people they meet.. It is like collecting calling cards in the early 1900's or business cards in the late 1900's..
You can always unfriend them.. It is not something to be taken personally, sometimes, I clean out my "friends list".