My listing in Boat US would be:
Licensed 500t captain
with 30 years blue water
experience, delivering dinghies to megayachts, doesn't drink, smoke, easy to get along with--only one small vice*
Seriously, if one of these listing websites wants to add value to the equation, they need to vet the candidates: captains, crew, and boats. I would pay someone who I could trust to tell me whether the captain
, crew, or boat was really any good or not.
* I lie