A distro is a set of applications preinstalled on a Linux kernel that don't seem to work as expected. Debugging tools usually don't come preinstalled with the distro.
it is a tribe, they have conflicting ideas and ideologies apart from that Linux and FOSS is great, everything else is contestable. There is a hierarchy in the tribes with strong links to there initiation ritual. You are free to change tribe as much as you want or even be in multiple tribes but when war breaks out you must defend your tribe.