I've written extensively in the last few days explaining the moderation approach to cases like this. Let me dig up some links for you...
Edit: here's one post that covers the basics: https://news.ycombinator.com/item?id=42911011. If you (or anyone) want further explanation, here are links that cover some of the principles we're applying here:
major ongoing topic - https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...
significant new information - https://hn.algolia.com/?dateRange=all&page=0&prefix=false&so...
political overlap - https://hn.algolia.com/?dateRange=all&page=0&prefix=false&so...
downweighting follow-ups - https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...
curiosity vs. repetition - https://hn.algolia.com/?dateRange=all&page=0&prefix=false&so...
turning off flags - https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...
All we're doing is applying those principles the way we usually do. That doesn't mean we make every individual call correctly—we definitely don't. (I wrote about that recently here: https://news.ycombinator.com/item?id=42787306.) But the principles are stable, and as far as I know they're the right ones for HN.
If people want us to change how we moderate, it's not enough to demand that we unflag more stories about a specific $Topic that some users feel strongly about. That argument doesn't work because there is always such a $Topic going on.
Rather, you'd need to argue either that we're not following our principles, or that they're the wrong principles (and in that case propose better ones). I'd personally be very interested in such arguments; like anyone who has worked hard on a problem for years, I'd be both surprised and gratified to learn about a better solution. We just need to be talking about the same problem. In HN's case, the problem is how to optimize an open web forum for intellectual curiosity (https://hn.algolia.com/?dateRange=all&page=0&prefix=true&sor...).