Discount but not discard. Others have their own agenda and if it were directly opposed to mine such that all our interactions were zero sum then I would ignore their communication. But in most cases there is some overlap in goals or at least compatibility. In such cases communication can be useful. Particularly when the information is verifiable. There will be publication bias but that is a bias not a completely invalidated signal.
Discount but not discard. Others have their own agenda and if it were directly opposed to mine such that all our interactions were zero sum then I would ignore their communication. But in most cases there is some overlap in goals or at least compatibility. In such cases communication can be useful. Particularly when the information is verifiable. There will be publication bias but that is a bias not a completely invalidated signal.