Thanks to the FReeper who shall remain nameless for sending this link -- reminds me of the vast body of self-published work of the late Milton Monson, author of "Physics Is Constipated" and other works.
The youngest member of the physics department is normally given the task to answer persons like that, and the best strategy is to write them that you know of one person that is an expert in this field and then forward the letter to another one in the crackpot list.
http://math.ucr.edu/home/baez/crackpot.html