The icq history feature gives us a way to do something that no generation has ever been able to do before...remember the most banal, trivial things we have ever said to our friends, aquaintances and even totally random foreign people who want to chat with us.
No one should ever underestimate the nostalgia inducing power of reading over online discussions of trivialities with your first real girlfriend. While in the past, people wouild merely think about that special time when they said sweet things to each other, now you can look back and see exactly what you said, and the exact minute you said it. (Of course, that doesn't usually make it feel quite the same as when it was actually being typed).