The step of categorizing your social networking broadcast channels into proper groups has been years overdue. That's a great feature. I'm just saying that maybe people should pause and take a minute to actually do with Google+ what they originally intended to do with Facebook. You know, four or five years ago when the whole world switched over to Facebook, because it was the place you only "friended" people that you actually knew as opposed to "everyone with a pulse" that you friended on MySpace? Seems like everyone let that get away from them (and they frequently complain about how exactly that has happened to them). So instead of rushing back into the same situation, it's a great time to rethink how we're using such a service.
So it's definitely not that I want less people in my friend list, just that I want to be able to easily limit what they see about me.
I don't know how those people with super high friend counts manage to eke any utility out of FB, unless they're trying to sell something.
I don't have a super high friend count on FB, but I've set up privacy levels on the friend groups I have created. I'll usually accept a friend request from anyone I know, and then add that person to a friend group, with appropriate privacy levels. A person with a large friend count could do the same thing.
I'm surprised that more people don't use this functionality on FB, but then again categorizing is fun for me (and a lot of other geeks, I presume).