Exposure is not the same as demand
A listing on five portals at the wrong price will simply be ignored by five times more qualified buyers. Exposure multiplies whatever signal the listing is already sending. If the signal is weak, more reach makes the problem more visible, not less real.
The buyers who matter for a given yacht are a small, informed group. They monitor the segment closely and they recognise an over-asked yacht within seconds. Adding portals does not change their assessment.

