Source trust and the validity of a contribution

How should a useful contribution be treated when its source later proves unreliable or hostile?

Formülasyon

A source can build trust strategically and still produce beneficial ideas. Rejecting everything after discovering an adverse intention can destroy valid gains, while trusting the source wholesale can preserve hidden defects.

Gerilim

Neither good reputation nor bad intention is a substitute for inspecting the contribution.

Açık soru

Which dependencies actually fail when the credibility of a source changes?