Puts commercial thinking cap on .......
um let me see, because if it's commercial stuff you know and approve of you are not really a good target market as you probably already buy their products.
admittedly if it's stuff MN'ers post about in strongly negative terms then it's unlikely to gain new customers either but remember loads of less confident people lurk, reading threads but never posting and what do we know about their shopping preferences/tolerances ? Not a thing, because they don't post to inform us that they are quite likely to buy a "lunchable" and are pleased to see the fat and salt content has been lowered so will buy them more often.