You're not a songwriter until you've written 100 songs.
 
So I'll revise that and say "contributor".
 
As of today a song was posted in the Songs Forum where I was a contributor. That marks the 100th such posting.
 
I'll not shamelessly link it (paulo hates that) so I'll just let you find it on your own.

A fine song it is too.
 
I predict my 100th contribution will be to the tune 'Soothsayer Blues'
 
...which has already happened..
 
...see..told you.

But your number keeps dropping by juan each day.
 
Pretty soon I'll have mor-n-u.

bapu
You're not a songwriter until you've written 100 songs.
 

 I wonder what became so magical after reaching 100?
(Why not lucky like 7, 57 like Heinz, or 99 luftballons?)

I assume he meant NOT 100 songs of C-Am-F-G or Gloria.

And I also assume he meant NOT just some minuscule number like 10. 
 

I'm pretty sure he was thinking of one number less than that, Bapu.

It's a Revolution I tells ya.

I heard that once said about post count as well. 

Everything changes this...
 
Something about that quote doesn't look quite right.