Getting username in RSS ?

[WickedVixsen]

I'm using some RSS feeds on my forum, and I'd like to have the forum member's username added to the end of the links so that I can track who's clicking on links, and of course who's making purchases from the links.

This is what the RSS feed link shows in the control panel when setting up a new feed.

PHP Code:

[url={feed:link}]More...[/url] 

What I'd like is to add the forum username in there as well.

PHP Code:

[url={feed:link}&sid=USERNAME]More...[/url] 

Anyone know how I could do this ?