Except no, they're not.
Patently, any 'merit' this research has is immediately rendered moot because it's fuelled by scaremongering of the highest order. And in an age where newspapers seem to scream that apparently 'everything can give you cancer!', our attitude as a society has become so nonchalant to threats that adding another thing to the list really doesn't matter. Besides, the risk of getting cancer from a candle is so galactically low that it's still debateable. I mean, this was one piece of research done by one university - you need many more independent studies and a whole lot of data sampling to even start to determine whether candles might be a threat to health. But what really pisses me off is that once again Science is seen by the general public to be wasting time and funds on subjects and areas that are of no concern or help to society. It's not really the Scientific community's fault - I mean, yes, zombie and candle research are a waste of time, but it is only a small part of a much bigger endeavour. The problem lies with the Media cherrypicking these stories for want of a cheap public health scare and to sell more papers to an already worried public. For instance, did you know that this week scientists in Maryland came one step closer to generating synthetic life? Or that a new flood-resistant rice plant that could feed millions has been developed? Or that strains of life-generating amino acids have been found on a comet out in deep space? That's all real, impressive, boundary-breaking science and if you haven't heard about it it's not your fault, they're just not stories that a newspaper can practically apply to terrify you and your kids.
Candles aren't going to give you cancer, but if they did then I'm just glad there are proper scientists out there working on cures. So, South Carolina researchers, get the wax out of your ears, give your matches back to mummy, and go help them.