I don't like my PC friends list having more than 35 alumni in its ranks, I feel that's a fair representation of the people I have befriended in my four or so years here. I don't see why it's sad to prune people, they're not a part of my online life anymore, so why not get rid of them? Every three months or so I go prune anyone who hasn't talked to me for quite some time or who I feel have annoyed me as of late. In fact, I got rid of a couple of people yesterday, because their squatting in my sanctuary of friends and lovers was unwelcome. However, there are some people in my friends list who I will not get rid of, whether it just be for ceremonial value or because I love them to bits. If it gets to the point where I'll have to go over 35 members in order to keep some of my ceremonial friendships and my longer-lasting friendships, then so be it. I really don't want to, though. But yeah, I reiterate my question of earlier, how is it sad? Sure, it's 'letting go', but this point you've already 'moved on', haven't you?
As for Facebook, I don't think I've ever had a pruning session ever, lol. I barely go on it as it is, let alone spending time pruning the 100 or so friends I have on it anyway. There are people on my Facebook who I cannot stand nowadays, for those friendships were severed ages ago, but I can't be bothered logging on to solely to wipe them off.