If there is no skepticism/no filter/no logic, then possible useful methods will be lost or ignored. I think you have this twisted/backwards; giving credibility to something that does not deserve it means that no serious scientist in the field (or competent government official) will take anything presented by amateurs seriously. So, the problem is not lost time from one person; the problem is damage to the whole field of short term earthquake prediction.

The Southern California Earthquake Center, in their study of earthquake predictability, is only interested in evaluating physics-based prediction schemes. It has to make sense. Seems reasonable to me.

Chris