I feel like I disagree. I don't have a "duty" to do anything. If I was able to find the information and make a discovery, then others are capable of it too, and there is a lot of value in allowing people to experience that process on their own. If you ask me, I'll tell you, but I feel leaving the question open for others can often be worth doing.<p>I think the author makes a far finer point on one of their linked project pages, All About Berlin:<p>"All About Berlin is my answer to the hastily written SEO spam that pervades the web. It proves that a website can be successful without annoying the everliving crap out of its readers.<p>It has no ads, no paywalls, no dark patterns, no newsletter pop-up, no coercive cookie notice, no call to action, no comments, no promoted content, and no share buttons. It gives straight, honest answers for free. That’s it."<p>This is more useful thinking about the core issue, I feel. You don't have a duty to document, but you do have a duty to not intentionally obscure useful information in order to derive a personal benefit from that obscurity. No small irony that this is on a site that designed to take _government_ information and make it more accessible to citizens that have already paid for it.