ftp://ftp.kontron.com/Products/Motherboards/Industrial/D3544-S_Mini-STX/Documentation/ ftp://ftp.panasonic.com/pub/panasonic/call_center/firmware/
One advantage of ftp is that it is much easier to have access control on different resources than dealing with .htaccess files so it was popular with customer service.
The consequence will be that many ftp servers still hosting software/firmware for legacy products will be taken down and their content lost.