It's because Delicious is something people use to save things, and anything in the form of a list is something that seems like it ought to be kept. You can make any essay seem like a reference work by recasting it as a numbered list.
Delicious/popular was better before writers started intentionally gaming it by doing that sort of thing.
Interesting that the checklist only deals with optimizing and performance in a very cursory manner. Doubly interesting that no one here ranted about that considering the obsession with performance among the HN crowd.
Frankly, having performance problems is about the best problem I could have, on launching a new website.
Since most of us won't have enough customers to bring these problems to light, time spent worrying overmuch about performance at this stage in the game is time that could have been spent getting more customers. And honestly, time wasted.
