I disagree. Most opinions that state "I already knew this, and you should too" are banal and do not lead to interesting discussion. And the moderation system of this site is set up to promote interesting discussion.
True but my comment was more directed at the disenfranchising nature of 'using printf.' Printf has nothing to do with shellcode, and is just a silent mockdrop of BS to entice those who would probably click onto the next article of a real explanation of shellcode were had. I prefer frankness to BS even if the frank explanation intimidates most.
