@dangerschone
As a long time player I appreciate the addition of Safer Seas for all of the reasons it is here. It was way overdue.
After playing gobs of time in HS since launch I have no problem at all with the following (and I would regardless probably stay in HS for the most part):
It's easy to understand the some of the WHY on penalties on rewards but the current implementation of it is excessive, especially when you factor in waddling to each faction leader for individual turn ins. Ease the penalty and maybe it's also past time to put a harpoon on the dock by the Shipwright or Merchant.
Allow Captained ships in SS. It's simply allowing a reward already (and probably only ever) earned in HS mode anyway and people LOVE their personalized ships. In a custom solo session not being able to have your ship that you've spent a game lifetime creating isn't just disappointing, it pretty much sucks.
Significantly reduce or adjust the SS penalty for treasure, or eliminate it? Who cares? If it must remain something like a 50% gain is infinitely more logical than 30%, which right now is weirdly scolding and punitive for a GAME. It's all for buying clothes and paint jobs and bits and bobs almost no one else ever sees.
There is already a HS-only treasure bonus available via Emissary. Keeping Emissary in HS and not in SS should be enough of a division, not a further penalty on top of that. People that would rather play in SS are not going to spend time in HS to "flex" their shirts or boots anyhow (a weird thing some HS only players worry about).
Increase the number and type of PVP-oriented rewards for people preoccupied with such things. If you can only get them via PVP isn't that enough of a separator?
Special event bonuses (i.e. community weekend, bonus treasure, pop up plunder, etc.) only ever on HS.
The list can go on. There are ways to make it work that don't make SS pointless for the people that would rather play there. There is nothing wrong with loving the game and not wanting to play the fully featured PVP mode of it. Just because that sounds boring to some it could be heavenly for others, and you'll probably never see them anyhow.