Same here. I am geniunely asking myself for what though. I mean, they'll receive a list of the linked domains, but what will they do with that?

They are downloading and archiving the pages that the links point to

It's not only goo.gl links they are actively archiving. Take a look at their current tasks.

https://tracker.archiveteam.org/

save it, forever*.

* as long as humanly possible, as is archive.org's mission.