This is a story about social media technology and a fairly deep and documented look at how a specific group is using this technology to spread their version of propaganda and harassment.
The use of the technology may be political, but I would not call this a political article. I was surprised this made it to the front page too at first but as I read on, it ended up being a really interesting article detailing fairly specifically how social media tech is used to engage in harassment, attack people for voicing an opposing political opinion, alter public narratives on important divisive events, etc. It's probably the most plain explanation of how this process works and how social media tech accelerates it I've read to date.