During VTOL landings, do Harrier pilots cut power before touching the ground?
The Harrier's NATOPS flight manual (A1-AV8BB-NFM-000) is available online.

Both the text and the diagram in Part III Normal Procedures confirm the opposite. Thrust is idled when "positively down". And not before. Which agrees with the dozens of soft landing videos on YouTube (base and shipboard alike). And as with shipborne helicopters, in rough seas the pilots wait for the pitching deck to catch up to them. Anything else would be an unlucky situation the pilot has found themselves in, but is not standard procedure.


  7.6.4 Vertical Landing
  
  (...)
  
  When positively down:
  
  
  Throttle — IDLE.
  Brakes — APPLY.
  Nozzles — AFT.
  Trim — 4° ND.
  Water — OFF (if selected).
  




Moreover, before step 5 there is this note:


  If strakes or gun pods are not installed some suck-down effect is present.
  A power increase may be required near touchdown to prevent excessive sink rate.


The only mention of idling (i.e., cutting/chopping) is step 5 and the diagram.