Rask was the first to crack the 1000 mark. I don't have a problem with giving him a unique title for it.
If I had a particular title in mind, I might want Jon to change it for me, but I also realise that there are quite a few of us with more than 1000, and more on the way. We might eventually have several dozen members with strange titles that wouldn't really mean anything. For me, being a moderator is more important than having 1000 posts.