You are not telling me anything new.
Please note that the post you are quoting is from February, 3 Months before any official statement from Wonderstruck.
Also note that the person proposing the shop in that thread is suggesting a pay to win model , seeling gear, resources and brews for real money.
Maintaining a Subscription-free MMO:
Boundless is a subscription-free MMO which means you buy the game at a fixed price and can then play the game forever without having to spend a penny more. We’re proud of this fact and think it’s honest that players know exactly how much they need to spend to play the game, and that for the price of a standard game can play for 100s or 1000s of hours.
We are going to be supporting Boundless for years to come, adding new features and content regularly, and along with the cost of running the servers, this means we will have ongoing bills to pay and so require ways of making money through the game.
Given that everyone who plays the game will have already paid for it, the amount of money we need to make is lower that for a free-to-play game, so that we won’t need to aggressively extract as much cash as possible, but instead can offer some nice to have extras and players can buy them or not.
So what can we offer in Boundless that will help us maintain the game whilst not corrupting it?