I don't use Pinboard—bookmarks are mostly a place I send open tabs I'll never get around to reading so I don't feel bad about closing them—they may as well go to /dev/null.

But storing data (and backing it up, and ensuring that backups work, and having some kind of monitoring so you don't discover one day that everything silently broke and all your data is now gone, and buying the hardware to support all that, and taking time to research the purchase of that hardware, and the extra, constant, low-grade stress associated with all the above) is never free, provided you actually care that said data survive and be accessible/useful.