Privacy lists on IM, anyone?

How we like talking to some people more than others? How we like to be interrupted (read pinged) by some people more often? How on some days, nostalgia makes us want to connect to one part of our life sooo much more than the rest of it? Oh and, how we sometimes want the rest of the world to drown out when we are in the middle of certain conversations! Times when other pings feel rather annoying..And yet, our flat IM (office communicator/gtalk/yahoo messenger) contacts list has everybody who we ever added to it since we began internet chatting! We can either be online to everyone or offline. On one hand, the invisible setting just blocks everyone out. As good as disabling the chat feature, right? And on the other, the block/blacklist feature is for non-friends! Well, not always useful :) Yahoo! messenger's stealth settings allow to either be online/offline(invisible) or permanently offline (=block) to someone but have to be set distinctly per contact. Aaargh! super tedious, ain't it?    

I want privacy lists in my IM! I want to be able to create lists of people based on the context of my interaction with them and be able to set my status separately for each of these lists. Imagine lists for family, school friends, college friends, work pals, close buddies, once-close buddies et al miscellaneous and the flexibility to set here/idle/brb/dnd/out/random custom status for all of them So if you want the privacy lists too, raise your hands and say Aye Aye Captain! or you know you can even just Like this post.