That's the
reason for, not
usefulness of.
I was just picturing the Fuel Rats using delayed comms. Some poor player gets stuck out in the middle of nowhere. "Help me! I suck at fuel scooping." A couple of days/hours/minutes (come on - it would have to be a reasonable delay to fit... science) a Fuel Rat picks up the message. "I'll get it!" He sets off. A couple of minutes later (because he was slightly further away) another Fuel Rat picks up the original message but hasn't received the first Fuel Rat's response yet. "I'll get it!" He sets off too. Meanwhile, the original player hasn't heard back yet and decided it was easier just to self-destruct and stay closer to home. The two fuel rats spend an exciting time trying to coordinate between themselves and the original player who they haven't heard back from yet (because he is no longer there) but expect to eventually (because... science).
“It's a dangerous business, Frodo, going out your door. You step onto the road, and if you don't keep your feet, there's no knowing where you might be swept off to.”
Life is tough.
Get your point though.
Chats don't need to be delayed. You can already voice chat in game with someone with no delay which essentially "breaks lore". Also you can text chat with people in the same supercruise instance in real time regardless if they are next to the entry point or 1000 LS away. Artificially delaying messages in a chat to preserve lore (which is already broken by other already existing communication systems) would break gameplay.
Then, imho, that should be changed to include the delay.
Just because something is already in the game, doesn't mean it's okay to keep adding to it and thereby making the entire thing worse.
I don't really know why but I find the very idea of instantaneous communication across the galaxy without any lore to support it ... incredibly distasteful; it leaves a very bad taste in my mouth - like it breaks the game or something.
Hmm, weird. heh