Submissions can't really expect more than a 4:1 ratio of upvotes to downvotes. Say anything negative about Python (even things that are demonstrably true like the performance degradation of CPU bound tasks on multi-core machines because of the GIL on CPython) or positive about Apple (even something demonstrably true like "the iPad is a successful new product launch") and get downvoted into oblivion (sadly, HN is starting to get a few knee-jerk Apple haters /sigh).
Someone posted a "Physics of Angry Birds" post here in the last week and someone took the time to post a snide, self-righteous "this doesn't belong here" comment, which is similar to what you're talking about. Frankly I don't understand this attitude at all: if the post doesn't interest you, move on. 3/4 of the HN posts are of no personal interest to me. That doesn't make them objectively bad.