I see karma on posts fluctuating (in particular going down) more than I would expect coming from other vote-based websites. Is downvoting really used here for posts that are not spam or trolling? Or do people just change their minds a lot?
The FAQ has: We encourage people to vote such that upvote means “I want to see more of this” and downvote means “I want to see less of this.” But I guess I’m surprised if people actually behave that way? And that some posts are controversial enough to receive active downvotes vs passive ignoring.
There might be multiple dimensions of quality, or types (of content) that require time to invest in (to appreciate/recognize quality/etc.), that not everyone wants to invest in currently. See here, from further up the page - LW users aren't homogenous wrt. taste and topic related group membership population can 'have effects on ability to judge'.
Basically this, with 'and time investment is required to understand X, like the Sequences (except hopefully it takes less time)'.
(Perhaps this could be solved via recognition of different types (or groups) which can be filtered on, and tools for doing so.)
Does that make sense?