To Prune?

I was looking through my AIM buddy list, and I really ought to prune it. But as soon as I do, generally, I see someone I just took off after not interacting for ages, and feel bad because for some reason or other they've said something about making contact after that meeting. Of course, I then don't talk to them, and they don't try to talk to me either, so it's pointless- it's just enough to make me feel guilty. How long after someone ceases to use a screen name is it ok to remove it, I wonder... THe behind-the-scenes etiquette of these things is just waiting for someone to codify it in some way...

To Prune?

I was looking through my AIM buddy list, and I really ought to prune it. But as soon as I do, generally, I see someone I just took off after not interacting for ages, and feel bad because for some reason or other they've said something about making contact after that meeting. Of course, I then don't talk to them, and they don't try to talk to me either, so it's pointless- it's just enough to make me feel guilty. How long after someone ceases to use a screen name is it ok to remove it, I wonder... THe behind-the-scenes etiquette of these things is just waiting for someone to codify it in some way...