Melvin's and Maurice's were always must-stops for my family. Maurice's in Columbia on our way to the beach (either Myrtle or Charleston or Hunting Island) and Melvin's regularly when my dad was working in Charleston for a couple of years. Both at their original locations, AFAIK. I didn't know anything about the politics of Maurice at the time, but read about it later (that very article, I think, was linked on HN a while back).
So, yeah, even vile racists make good BBQ in SC, and nobody held their racism against them through decades of successful operation. I always found that history pretty fascinating, even before the racism came up...brothers kinda duking it out in a BBQ turf war, in a state where BBQ really matters.