Arne Lap

https://wordpress.org/support/topic/extra-visitor-data/

https://wordpress.org/support/topic/switch-from-wp-statistics-to-koko/

https://wordpress.org/support/topic/event-pdf-downloads-tracking/

Another request for event tracking, to track outbound links that moved people away from the site. https://wordpress.org/support/topic/could-you-please-add-those-features/

https://wordpress.org/support/topic/tracking-downloads-13/

https://wordpress.org/support/topic/how-to-see-stats-of-a-single-url/#post-15632985

https://wordpress.org/support/topic/any-questions-6/

https://wordpress.org/support/topic/how-to-track-campaigns/#post-15069197

https://wordpress.org/support/topic/extra-visitor-data/

Email newsletter services that use unique links, eg