Board Thread:Questions and Answers/@comment-25684581-20141217112509/@comment-3406131-20141217140330

Well, it is not easy to decide to remove a content who could be useful if referenced,

As others, admins track the lack of references, and look for answers to the editors, but between those who "don't recall" the origin and those who simply do not answer the admins, there is a lack.

It's the responsibility of all users to correct and references what some lazily post without references, and to remind to those that their work can't be valuable without proper references.