I've only flown past a dormant remnant battle station when I first gave .8 version a quick playthrough with a new character with a new pirate portrait and refused to initiate combat with it because I quickly fell in love seeing an actual and ancient entity in a form of long-forbidden remnant AI ships, structures/stations in the game.
As for the Domain side of ancient AI which seem to be really just a bunch of glorified fool-proof and highly programmed program(s) that fly automated clunkers and repair them with defeated passing-by ships to keep their programmed list of priorities, ships and fleets in check for about over hundreds to probable thousand(s) of cycles ago back when they had purpose but since the original creators have long vanished and governments split apart and ever changing throughout all the star sectors with now disabled large star gates. They regrettably along with even remnants, are automatically hostile because they don't really seem to know what has happened over the eons ago and are most likely wondering why there are no answers from their creators and so they resort to their rest of their original programming which creates the byproduct effect on every living human now in the split-up sectors that
"AI is evil! Blah blah propoganda blah blah blah." since the AI fleets themselves just haven't gotten the memo of
"Uhm.. hey those old wars and politics are far into the past so can you uh.. change your priorities please?"
or some other kind of re-configuring to a straight-up off switch.
I'm most likely just digging too deep into all of the lore at this point but it does make a lot of sense to me IMO.
Anyhow as to avoid further derailing. I've only taken down a fully operational Domain's derelict AI clunker battle station, however I was barely awake at the time as I was both tired and zoned-out to a point I can't even remember what super-ship I used as I had a few of them in my fleet for quick ship change only.
EDIT_1: @TJJ,
The only thing that really died in that battle was my frame rate.
Holy arse end of a cow! Yikes, haven't seen this amount of incoming steamroll in the game and if I have seen something like that it usually consists of many upon many smaller vessels but this though... talk about overkill!
EDIT_2: Just found a second derelict
battle station mothership again and it's exactly the thing I was talking about having fought with:
Spoiler
And yeah, that remnant ship there, that's my modded-in altered version of the original Brilliant-class ship, I just basically mirror swapped the left side the most visually so I could have two large weapon mounts and my beloved symmetry. Heavier config modifications are all inside the ship.