Anthony DiPierro wrote:
In my opinion it is never acceptable to keep false information in the article namespace. There are places where eventualism is acceptable, but presenting false information as true information is not one of them.
Known to be false information, yes. Unverified information is another beast---a large proportion of our mathematical articles are currently unreferenced, but almost certainly correct (and can be easily verified by anyone knowledgeable in the field, or with access to an intro-level textbook).
If it's an unverified half-sentence stub, perhaps we don't lose much by simply deleting it. If it's a good article that just needs some references added, though, we move backwards by deleting it and forcing someone later to start from scratch.
-Mark