You can signal "I don't care" by pressing the Next Question button without selecting an answer. Not obvious though.
Re:Distro Chooser
by basvdwollenberg on Saturday September 17, 2016 @07:32PM
(#12523089)
It does say "You can leave questions unanswered" at the start, which can be seen as saying it's an "I don't care" option.
I chose pacman, as I'm already using Arch, yet the best match for me was Debian with 87%.