Big Dog, are you proposing that we throw away the scientific method? If so, what would you replace it with? How do you suggest we evaluate claims made by others?
Not at all, the scientific method is invaluable for the advancement of our knowledge. What I chuckle about here is that there is no conclusive evidence either way as to the source of every crop circle, their origins haven't been subjected to the rigourous investigation and peer review you champion. Yet the hard science folks are convinced that every crop circle ever formed was made by a couple of fellows (or gals) with some rope and and board. That hasn't been proven either beyond a shadow of a doubt yet by God it must be so because it couldn't possibly be anything else we don't understand that could have done it. That is the analogy of the old saw in science of, well, we can't explain it now, but someday we will be able to. Fine, when someday comes and you have it nailed down, then explain in, until then your conjecture holds as much weight as the alien argument.