Any redirection to referall link is also considered as a ref link spam.
You can report it to moderator buy giving following info or with the help of following rules.
4. No referral code (ref link) spam.
4. Ref spam is generally quite easy to spot. Normally, it's followed by "r=" or by a unique code at the end of a link. However, if the user has hidden it behind a markup url such as http://<ref link> it would be best to specify this.
4. "ref spam" should normally be enough or if the user has hidden it behind url tags: "Ref spam, hidden behind a URL tag to appear as a normal link"