Thoughtlessly saying "citation needed" is a recipe for an insidious confirmation bias. It is always intellectually lazy, in the same way that blindly accepting provided claims is intellectually lazy: it allows the reader to avoid thinking about the claims in question.
Citing a study is not a panacea for bad ideas, and lacking citations is not a death sentence for truth. Hacker News saw an article just the other day on how many conclusions drawn by science are incorrect. Don't be so eager to avoid thinking critically that the presence or absence of a citation dictates your response to an essay.
> it allows the reader to avoid thinking about the claims in question.
There is nothing to think about when there is no evidence, except how to gather or find reliable evidence. No amount of solitary mental rumination will yield a revelation about how effective certain UI features are with users. My own anecdotes are just as useless as my opponents'. This isn't laziness. I'm not being lazy when I ask accusers to provide some evidence that someone is in fact a witch.
And sure, the scientific community may be out of date or downright wrong, even half of the time. That's not an argument against the need for evidence. It's an argument for thoughtful analysis of evidence after it is presented, and more and better techniques for gathering evidence.
> It is always intellectually lazy, in the same way that blindly accepting provided claims is intellectually lazy: it allows the reader to avoid thinking about the claims in question.
I did think about the statement, and I thought it was untrue. Then I asked for evidence to support the claim. Is that intellectually lazy, or is the original post intellectually lazy?
Regardless, 5-10 minutes after I posted "citation needed," I backed it up with examples, and followed up on subthreads with more points.
Citing a study is not a panacea for bad ideas, and lacking citations is not a death sentence for truth. Hacker News saw an article just the other day on how many conclusions drawn by science are incorrect. Don't be so eager to avoid thinking critically that the presence or absence of a citation dictates your response to an essay.