You claim to be very concerned about giving our cookies the best visibility, but considering that by posting photos of our cookies on your site we are providing you with free content for you to monetize, harsly scolding and correcting posting errors may not be the warmest welcome to newcomers. For example, I haven't posted again since I was pounced on within hours of my first upload, because my photos weren't properly titled and tagged.
One wonders if your true concern has more to do with your own interests rather than the visibility of any given single cookie, or cookier. I can just as easily post photos of my cookies on Facebook or Flikr where I get plenty of positive feedback already, and skip the "Mother May I"
You ought to consider how you are coming across. It may be less pleasant than you realize.