Lolz...now I love your conclusion because I was just about saying that as well. It is quite tideous and the humans I know would prefer to take the easy way out which is remaining on Facebook since it doesn't bite. But the need to take the steps you just outlined is very important because it will get to save us from the future disaster waiting to occure by using Facebook.
I will take the steps and delet Facebook and also want to seize this opportunity to implore others to do just same.
Talking about the Dunber Number ....150? I can't even keep 3 stable relationships. I can only manage 2 if they are same sex and 1 if it's the opposite sex. I have lots of acquaintances too and I would proudly say I don't have any Close friend.
Big ups to those who can manage up to 150 relationships ..mehn that's much. Lolzz