Thus I feel like youre right in everything youve said, but your decision is exactly what the trolls were hoping for. I think part of it is the design of hackernews threads; I think the old internet 1.0 forum style would be better suited for today's discourse. Having a dozen stickied threads for each of the executive orders inside of a sub forum for "news and events", for example.
The old 1.0 forums went by the wayside for good reasons, but the current upvote style has been in place for a long enough time now for bad actors to learn the strategies that manipulate the upvote system. IMO there's a need for a new forum style to replace the upvote/article based system.
That may or may not be a correct analyze of the situation, and other political researchers might make a different interpretation, but in that scenario the goal is to get people to talk about it. The opposite would be for the story to be buried and ignored.