Gone are the days when the "owner" of a channel or name was the person who got there first (or the person who was friends with a server admin), and DCC chats and file transfers, clever customizable scripts that would alter the entire interface to be closer to one's liking, a wide choice of clients, alternate nicks to use today because someone else was using yours (maybe deliberately, maybe not), and with netsplits just adding an element of chaos to the mix, and a seemingly-universal avoidance of getting money involved in the game at all.
(And maybe we're better without some of those aspects, but it's still not the same.)