They get flagged because people flag them. I'm guessing given all the news on Twitter that has dominated the site recently that plenty of HNers are tied of it.
I think it is interesting news, unfortunately the discussion around Twitter and almost always around Trump is not interesting. There are few insightful comments and mostly people wildly speculating with high confidence on whatever confirms their priors
Apparently there used to be a "vouch" link that would appear to counteract flags, but it seems like they got rid of it at some point in the past few years.
There isn't much interesting or curious to discuss. We can all play guessing games about Musk's motivations or speculate on what will happen to Twitter/Elon/Truth/Trump.
Elon unbanned in a opaque way. He tried to offload responsibility onto twitter users even though it contradicts and confirms his past statements on lifting bans. We already knew he wanted to do it, but he also recently claimed some council would be involved.
It is only 'news' when it suits the majority of HNers, such as Trump schadenfreude that will certainly reach the front page. [0] They won't admit that, but they know it is true.
It is a complete lie when HNers are saying they are 'tired' of Elon, Trump, Truth Social, Twitter, etc. They are tired of articles and news that goes against their confirmation bias like this one.
Any articles confirming their bias on misery for the above, it is 'good news' here. HN is not tired of that hence why [0] wasn't flagged, unlike this post.