Jimmy Wales wrote:
I really want to encourage a much stronger culture which says: it is better to have no information, than to have information like this, with no sources. Any editor who removes such things, and refuses to allow it back without an actual and appropriate source, should be the recipient of a barnstar.
In practice (maybe I'm not looking in the right places), I don't see much resistance to someone taking the initiative to remove unsourced material. The problem is more that the scribbling is outpacing the reviewing.
Also, with articles that already have references (which is true of many of them now), it's usually not obvious whether newly-added material is coming from the listed references, or from an unlisted reference, or is simply made up, and often only people with the physical works open on their laps are in a position to check.
I don't have any answers, just noting the daily quandaries.
Stan