OK, this may not be appropriate for this forum, but it is Wordpress's fault...
I never did like the Wordpress "feature" of "trackbacks", as every time I encountered them on websites they were most likely just a spam link.
And now, like many comment spammers do, I have a website for which the "trackback" link of:
/2013/05/hope-this-helps/trackback
is in some spammer database somewhere, and it is constantly being POSTed to, dozens of times each week, always with a different IP and referer.
It's an obvious referer scam, hoping the get a referer link posted.
My site NEVER used Wordpress. (I do not even like Wordpress). And all I can do is put:
RewriteRule trackback - [F]
in .htaccess (and also, ErrorDocument 403 "access denied") cuts down on Apache file access and bytes transfered).
*sigh*
