The  Rebuttal: Debunking the Conspiracy Theorists
 2.1 Lack of a blast crater beneath the LEM.
 
3000 pounds of thrust sounds like a lot, but spread out, it was actually rather gentle.
üThe engine nozzle was about 54” in diameter so that the area was about 2300 sq. in.
ü
üAt 3000 lbs thrust for landing, the pressure was only about 1.5 psi.
üIn a vacuum, rocket exhaust spreads out very rapidly.  Very little ends up impacting on the ground directly below the lander.