YachtBreaker has a specific stealth section on the website for registered users where you can post to the lists anonymously.

This is specifically useful for brokers and owners who wish to get as much attention as possible for the sale of their yacht or Superyacht, yet still remain discreet and only disclose your identity when both parties agree.

You can still post with a branded email secure in the knowledge that only verified Brokers can subscribe to receive emails/texts from this list. This is a very unique and powerful service that puts you directly in contact with the industry and the owners.