> I use USB sticks semi regularly

What do you use it for, is it something dropbox or others cannot do?

When did the sneakernet become a foreign concept to hackers?

I had stopped using floppy disks completely by high school. The reliability of floppies of that era was so poor that despite only having 56K at home, I'd start an FTP upload of my documents to my free 20 MB dialup ISP space when I left for school and by the time I arrived they were all safely there.

Around 1990.

Bandwidth is much greater.

Yes but I am pretty sure there very few people who need so much bandwidth and you can always buy a usb c flash drive.

True, I guess. And I'm one of them. Sometimes I use numerous Linux, Windows or macOS VMs for testing stuff. At 5-10GB per VM, that's way too much for my system array. So I use LUKS-encrypted HDDs and SSDs via USB. With my pitiful uplink, cloud storage for hundreds of GB would be unworkable.

And yes, I could use USB-C.