I'm afraid that your logic makes too much sense for me to argue against it.

Maybe.. an introduction topic would be a good thing, but just as with the welcome thread, I'm pretty sure that few would ever use it, because many use whatever thread they post in first (usually a comment) to introduce themselves..
[example]"Hello I'm new here, sorry for my bad english but I live on Mars and.." [/example]

But yeah.. worst case scenario.. thread is abandoned.. best case scenario.. thread becomes a sticky!.. hmm.. that SHOULD warrent a sticky.. actually.. I demand that it becomes a sticky so that people will know of it/feel inclined to use it.. whadda yah say old pal?