Idi Amin, though black, was NOT a hipster... Therefore he cannot be considered a blipster.
Blipsters usually are the token, if you see a black guy with a group of hipsters, he's more likely a blipster.
A lot blipsters have a song sense of self, with hip-hop(usually underground or old) and other black music, and intellectual black sensibilities that they usually feel are absent from todays black mainstream.
Yeah -- I couldn't tell if they were white or black. Their skin looked black but everything else screamed white. I think they were blipsters.