"This premise is VERY flawed" (found here) is the sole author-supplied content of a comment. There are no supporting links or additional content, only a one-sentence quote of the "offending" premise.
Yet, it has four upvotes.
This is a statement that can be made about any premise. It is backed by no supporting evidence.
Presumably, whoever upvoted it did so because they disagreed with the preceding comment (which, presumably, they downvoted -- unless they didn't have enough karma).
This *could* be viewed as rational behavior because it *does* support the goal of defeating the preceding comment but it does not support the LessWrong community. If premise is fatally flawed, then you should give at least some shred of a reason WHY or all you're doing is adding YOUR opinion.
This blog is "devoted to refining the art of human rationality". If the author is truly interested in refining his rationality, he has been given absolutely no help. He has no idea why his premise is flawed. He is now going to have to ask why or for some counter-examples. For his purposes (and the purposes of anyone else who doesn't understand or doesn't agree with your opinion), this post is useless noise clogging up the site.
Yet, it has four upvotes.
Is anyone else here bothered by this or am I way off base?
I generally don't trust karma systems on discussion/comment sites, period. They seem to tend over time to get subverted into one of several different failure modes:
I was going to mention examples of each from other sites, but decided that that wasn't very useful, because it would require familiarity with those sites, and possibly inspire quibbling over particular cases. I haven't been around Less Wrong long enough to observe how well it works here.
The general case was analysed by Clay Shirky in A Group Is Its Own Worst Enemy.
[Those of us around Wikipedia reading Shirky's article in 2004-2005 giggled in horror at Wikipedia being named as an aversion of this trope.]
Basically, every social space (in general) grows and dies. This is normal. Start new ones as the old ones go bad.