Larinna should take over the seaposts trader's business;
-The trader NPC's stay but sell black market goods instead of 3 items a day.
-A rare chance to buy previous a single bilge rat time-limited cosmetics such as a Wailing Barnacle, bone crusher or Forsaken Ashen sets
Perhaps one rare item every Friday for 24 hours in-game at an extortionate rate ( 3-5 times more expensive than originally).
-A bundle deal for an entire set for a small discount.
In Larinna's attempts to expand the Bilge Rats she should buy out the seaposts, she will remain outside the tavern's around the Seas but will oversee the business of the seaposts and in the process add to her "Bilge Rat grog fund" as she call it. The seaposts were a failing business as pirates who carried 2 million gold in their pocket didn't care much for a 10% discount on an item they didn't want. Most visitors only came to see the Hunter's call and often forgot to check in with the trader's. Now the richest pirates on the seas will have a reason to visit these traders in the hopes of finding that certain jacket or hat they were dying to get but missed for... reasons
I think this would make those who beg for the time-limited cosmetics to come back happy whilst not angering those against it as it is a rare chance and much more expensive than it was. It also gives people a reason to visit the seaposts.