But aside from being unfair (which by itself would not be worth
fussing about), it also tends to split the community and thus
discourage communication and cooperation. When the people who use
what is essentially the GNU system think of themselves as "Linux
users", and not as "GNU users", often they don't see a reason
cooperate with the people who maintain the GNU software. This leads
to version-skew and unnecessary incompatibility.
One way to help unify the community, and gently encourage more
cooperation, is to use the term "Linux-based GNU system" to
describe these systems more accurately.