open-minded, defined by The Free Dictionary as:
Receptive to new and different ideas or the opinions of others.
People who appreciate creativity are, almost by definition, open-minded. However, people who are open-minded might also appreciate a lot of what turns out to be not true.
I want to avoid art and politics in my example, so I'll choose three examples from physics: (1) polywater; (2) cold fusion; (3) neutrinos going faster than the speed of light.
In each case, the phenomenon, which if true, would have been revolutionary, was found not to exist. However, physicists were excited; physicists wanted the apple cart to be upset, because in physics, upset apple carts lead to great progress. Thus, they were open-minded about three potential revolutions that proved to be experimental errors.
As far as hipsters, which was what you were asking about, open-minded hipsters are likely to appreciate not only creativity, but also what turns out to be nonsense.