Why is this flagged? What rule does it violate?
Posts on all sides of this topic get flagged quickly (by users), and mods turn off the flags on limited occasions—mostly when some significant new information arises and there's at least some chance of a substantive discussion about it. It's pretty important that most stories about this conflict and similar current affairs get flagged, because otherwise HN's front page would consist of little else, and that's not the…
Brigaded reports? 4chan solved it by adding a mandatory enum to reports to specify what the report is reporting for. Identifying bad reports and banning users as a result becomes trivial.
Flooding with stories about a particular topic? That's what stickies are for and they work particularly well so that mods can auto-delete any non-sticky stories pertaining to the MOT.
Flamewar on a MOT? Add a sticky to the top of the thread like reddit does saying moderation will be minimal and to enter the thread at your own risk.