[wp-hackers] Close old comments and pingbacks: feature or plugin?

[Brian Layman]

> One thing I did that helped reduce a lot of it was to rename
wp-comments-post.php to a 
> random name and update the comment form's action to that new name. 

I always wondered if someone did that.  It seems like a great way to reduce
spam, but of course if WordPress adopted that in the core, spam bots would
come out that parse the name of the comment form prior to spamming.