I take that when several wings / non-winged commanders are in the same instance, the kill credits also go to the wing (or solo cmdr) that delivers the killing blow?
This specifically was patched several years ago, in Non capship instances everyone who has hit the thargoid (since they last dropped in) normally gets the credit, regardless if that's with a beam laser or every last gauss shot.
https://issues.frontierstore.net/issue-detail/2475
Far as the broader thread, I will just note 'afking' thargoids is a nigh impossible idea for a few reasons.
1 - Turrets do not Fire At Will on thargoids, therefore at minimum someone has to be at controls enough to select next target and hit fire for each enemy barring NPC crew.
2 - NPC Crew wise - Fighters, while they do engage at will (aside from current lance issues) attract swarms in outside-22460 engagements, have no defence against caustic missiles, and Really love to fly into caustic death clouds, dying swiftly to the DoT and severly curtailing the ability to say, park in the farragut's hangar and leave them to it.
2.5 - Due to both said missiles and death clouds from interceptors and scouts alike, the reverse concept - you in the fighter and the NPC flying, can result in a rather swift rebuy screen, much the same as conventional NPCs tend to die to caustic damage after their decon limpets run out.
- In past efforts they were not particularly competent wielding guardian weaponry in a main ship either, burning through all heatsinks, firing all weapons at once (including flak) and attempting to facetank - along with pt 3.
3 - With interceptor heart mechanics, i have only seen unaided NPCs take down hearts Accidentally a handful of times in the past four years of incursions - they're good at exerting, but they fired center-mass every time i ran into them prior, both AX Defense Force and SLF crew...
So, we do not possess weapons that allow afking in thargoid combat, crew would either die - or cause you a rebuy - due to caustic, and the big money makers so far required human intervention to take down - but equally see their credit yoinked by the capships.
As it is i'd say Multicrew is a better way to afk farm thargoids from sheer virtue of '8/24/40/60m - even a percentage a head adds up'.
Rambling aside, the answer was given, thanks to the good folk for their time/checking in on it, and the instances more generally - money aside they're very cool set pieces in their way.