XenForo has many action links. watch forum mark forum read watch thread reply report edit ip delete mark as unread star conversation leave conversation etc. These are all text while icons take up less space and look better. The watch forum link could be replaced by the same icon that is already used to indicate watching. Off course such should be an optional setting, so that admins can opt to use links if they want. It would be nice to see fontawesome or similar used for this.