I can accept bad metaphors and analogies in HN comments; this a technically focused community and the comments are so far above above most online forums that nitpicking about literary devices would be ridiculous. But I can't forgive the hotdog/hamburger/caviar analogy in this full length blog post. It does not convey his message well and really does the article a disservice. This writing should have been more thought out considering it is a follow up to his previous posts on this subject that got quite a bit of attention.
I realize this is somewhat off topic. But as an entrepreneur I feel this is worth noting because I can't overstate how affective a good metaphor (or good, well revised writing in general) can be in persuading others. And as a reader how easily a bad one can turn me off especially when woven throughout your entire piece.