I've been flying KLM for years and never knew about this site until today - it seems to have all sorts of info not available elsewhere, for example:

There is an extremely detailed description of the KLM/AF illness and death policy here: https://www.afkl.biz/trade/s/policie..._US&country=US

Who knew that KLM/AF policy allowed you to change your date of travel to a later date without regard to advance purchase restrictions and will waive service charges if you are sick and have a doctor's note? https://www.afkl.biz/trade/s/policie...%20their%20own

Schedule change rebooking rules: https://www.afkl.biz/trade/s/policie...%20their%20own

YR surcharge refundable even on non-refundable tickets when the ticket was issued in certain countries: https://www.afkl.biz/trade/s/policie...%20for%20cabin

You can get an extra seat for cabin baggage and the charge for the extra seat is 25% less than the ticket for the passenger: https://www.afkl.biz/trade/s/policie...%20for%20cabin