Even though there are many people who probably visit the link to the original art, there will always be some who completely disregard the message in the box and favorite club art anyway.
It would be nice if there was some kind of 'disable favorites' option created, in addition to the 'disable comments', but it's unlikely.
Until then, we have to continue to encourage people to visit the artists' page, rather then fav'ing art the club posts.