If you honestly think SC BBQ is only about mustard then you apparently didn't spend much time in SC or didn't frequent many BBQ joints. There are (at the very least) three main categories of bases in SC, a tomato/ketchup base, a mustard base and a Vinegar-Pepper base. All three of these have variations within them varying from sweet, spicy, tangy, etc or may be mixed such as a Vinegar-Pepper Tomato base which may also be sweet, spicy, or tangy or some combination. If you've only ever had mustard base BBQ in SC then you are highly unqualified to comment on anything about SC BBQ. As for SC never being mentioned in any major publication for BBQ, are you that oblivious??? Just a week or two ago Southern Living did a list of their top 50 southern BBQ joints and SC and NC both had 9 places listed which was tied for second behind Tennessee's 12. But let me guess, you don't consider that to be a major publication. Well off the top of my head, I know USA Today did an article on Sweatmen's in Holly Hill a couple of years ago and their are many other BBQ joints across SC who have had national publications highlight them as well, whether it be papers or magazines like Rolling Stone.