I lean heavily towards both flavours of (b), but it's probably "all of the above".
A guy I served with is now an academic "Extremism Expert" talking head, #nostr is exactly the sort of thing he'd be funded to smear, I mean, study.
And then there's every local, state and federal agency wanting its own "human terrain" / "social media analysis" unit.
Most of those bots could be glowies from less-resourced units. The ones you can't pick as bots are the Feds :-p