Maybe a little off topic, but:
I don't get why generation ships became obsolete. They are still big expensive ships. I would think they would be turned into luxury ships to live in space with and have hyperdrives added too them. They would be insanely useful. They could also potentially be turned into intergalactic ships.. Assuming you can keep them running long enough to survive and not loose power to feed plants with etc. They could always be outfited.
It would be cool if they would make these ownable ships as the are found. Maybe they give them up for users to use later in the game and we can fly them. Or there is enough interest and they are manufactured again in some way as flying bases. Might not even need to with 70,000 of them. Maybe be enough to actually have players own the actual ships. And dear god the crew count. And loss of crew if it ever dies. Definitely have to change the way we pay for crew on those.
Generation ships became obsolete because you no longer needed a giant, kilometres-long starship to found a colony. You could found a colony using much smaller, faster hyperdrive ships, once hyperdrive tech became cheap and reliable enough for that purpose.
These generation ships are a thousand years old, give or take a couple of centuries. Any abandoned generation ships still in space will have been in space far longer than their expected lifespan; they'd have been derelict for at least a couple of hundred years. "But nothing ever rusts or corrodes in space, so they should still be as good as new" is simply not true. Microstructurally-induced metal embrittlement, for example, happens slowly to all metals over time as the crystal structure of the metal slowly rearranges itself. A thousand-year-old piece of silver that could have been easily bent and twisted a thousand years ago would just snap in half if you tried to bend it today; ask any archaeologist who has ever found a mediaeval silver coin. This metal embrittlement happens, whether there is air nor not, whether there is gravity or not, and you can't make it go away without melting the piece of metal down and re-forging it. This is just one phenomena that we know could happen; we in the 21st century simply don't know what else can go wrong to a thousand-year-old derelict starship if you try to fly it, because we don;t have any thousand-year-old starships to test it on.
Nor would anyone in 3304 really want to fly an archaic relic. If you, a 21st century citizen, found the remains of a thousand-year-old Byzantine-era sailing ship adrift in the ocean, you wouldn't think "Let's slap a diesel engine on this thing and turn it into a modern cruise ship". You'd put it in a museum, while marveling at the circumstances that allowed it to survive to the present day. Likewise, it would be far cheaper (and safer) to build yourself a brand new megaship from scratch, rather than try to retrofit a FSD onto a fragile, archaic relic that needed hundreds of crew just to fly in a straight line.
I haven't read this thread enough yet, but have they all been found? I've been wondering about this in relationship to raxxla hunting. If we find them all maybe we'll find clues to raxxla. Either direct or indirect ones.
Depends what you mean by "all".
"About 70,000" were launched. We haven't found "all" of those, and we aren't going to... the vast majority of them would have Arrived safely at their destinations and would have been dismantled by the colonists, so no longer exist in the ED universe.
We don't know if we've found "all" the Generation Ships that FD have added to the game - by definition, they're "mysteries"; FD haven't told us how many were added to start with, nor if they've been adding more of them in subsequent updates. But I doubt there are any Raxxla clues hidden aboard a generation ship; I think the whole Raxxla came after generation ships became obsolete. And each ship would have been launched separately by different companies and organizations, with no overall co-ordination - so there are no clues to anything that could be gleaned from studying the distribution of them throughout the Bubble.