Plank-making is listed on the DNS list Guide DNS List under Money making guide so @Mandingo you will have to refund your buyers. I am however sympathetic to the argument that "well, every method is publicly known". I think this is very true and unfortunate for runescape guide sellers. The guide section exists as a way for buyers to find truly unique, one-of-a-kind methods. These methods have cropped up in the past and although they are very rare these days, there's no reason to believe that there will NEVER be a new money-making method in runescape. The section exists for those methods, not for methods that are already known and published on powerbot/youtube/etc
