If there's the least glimmer of money to be made, I suppose anything is susceptible to being corrupted. I recently got a spam comment on one of my flickr pictures.
I deleted the comment (preserved in screencapture form) and won't link to the flickr user or his website. I wonder if this is automated or just someone commenting on any photo that mentioned "web designer" just to promote his business.
Oh well - just life on the internet, I suppose.