RHF wrote:

Undeniable Fact # 1 - The Man Made RFI-EMF Environment
Has Changed Greatly : Increasing one or two Magnitudes from
the 1930s to the 1990s.

Undeniable Fact # 2 - Man's Ability to Accurately Measure the
RFI-EMF Environment and It's Effects Has Changed Greatly :
Increasing at least a Magnitude from the 1930s to the 1990s.

Undeniable Fact # 3 - According to a direct quote of Doty, UN-shielded
lead-in wires are susceptible to noise. Coaxial cable is SHIELDED. So
why does Doty say bury it?

Undeniable Fact # 4 - Even though the RFI environment has changed and
even though man's ability to measure it has changed, burial in a few
inches of soil provides no noise mitigation.

Undeniable Fact # 5 - Yes, the environment has changed and measurement
techniques have changed, but that does NOT mean the Laws of Physics have
changed.

Finally, for the sake of this discussion, assume your
neighbor/neighborhood is throwing out a lot of RF hash and trash.
Furthermore, let us assume you've buried your coax in hopes of
alleviating the problem (even though it won't).

What, pray tell, is to keep this neighborhood RF hash and trash from
impinging directly on the antenna itself and being piped right in to
your receiver?

-If you need to avoid the lawn mower, bury by all means.

-If you need to avoid the wrath of your wife, bury by all means.

-If you want to bury to mitigate noise, save your time, trouble and energy.