Better than flag, invoke the almighty @dang to consolidate the threads.

That is not what flag is for....

"How exactly does the flagging work?" - https://www.hackerneue.com/item?id=12173809

"...The purpose of flagging is to indicate that a story does not belong on HN. Frivolous flagging—e.g. flagging a story that's clearly on-topic by the site guidelines just because one personally dislikes it—eventually gets an account's flagging privileges taken away. But there's a new 'hide' link for people to click if they'd just like not to see a story..."