As I noted in another comment, when I reply 'Citation Needed', it's because I weakly disagree with the statement, but that disagreement is insufficiently suppor

As I noted in another comment, when I reply 'Citation Needed', it's because I weakly disagree with the statement, but that disagreement is insufficiently supported. In many cases, I'll go off and do some independent research at the same time, but mostly I'm requesting that the person provide some additional support for their thought. It also means that I'm open to being wrong in my disagreement. So, in short, I don't state disagreement in these cases because the strength of my opinion is too weak to merit it.