I am no PR specialist, but I think relevant folks should agree on a simple, sensible message accessible to non-experts, and then just hammer that same message relentlessly. So, e.g. why mention "Newcomb-like problems?" Like 10 people in the world know what you really mean. For example:

(a) The original thing was an overreaction,

(b) It is a sensible social norm to remove triggering stimuli, and Roko's basilisk was an anxiety trigger for some people,

(c) In fact, there is an entire area of decision theory involving counterfactual copies, blackmail... (read more)