I agree that you should at the very least take K9STH's advice regarding
lightning with a grain of salt. There is some good advice about
grounding, but there is also some bad advice, and most of his theories
about lightning have been replaced in the last 20 years among the
scientific community.

Also, the way I see it, we ground our gear for low noise and good
radiated signals. NEC grounds things for safety and lightning
protection. What constitutes a "good" ground system may differ
according to which viewpoint you adopt.