Oh, I'm not coming to get you.
There have been some posts of folks lost in the black wanting to come fight the Thargoids, or people in need of aid, or other services that are provided, and they don't seem to be aware of the
In short, the DSSA is a network of organized carrier owners with FCs around the galaxy offering many if not all services from their carriers. This ranges from repair, refuel, data sales (small fee is taken out, but that's the price of safety and convenience) and sometimes even ship sales if I'm not mistaken.
Why is this valuable? Well, you could sell your data at a DSSA carrier before coming back to the Bubble. You could also sell your data, buy a cheap ship, and sidey back to the bubble to fight bugs without having to take the long way. You could base your Exobiology grind around a DSSA carrier and have some peace of mind that you would sell your data before any changes were made to the payout levels (if this even happens). I have used a few of these carriers when traveling back and forth to Ishum's Reach and highly recommend them. (shout out to the Sublime, Nova Blues, and Totoro, thanks folks).
But, CMDR Oh Seven Commander, how could I find these carriers?
Try not to die!
Source: https://www.reddit.com/r/EliteDangerous/comments/zls1h4/caught_in_the_black_with_no_way_back/