Yahoo!, AVOS, "Science, Inc.", "Delicious Media" and Pinboard sure did a great dis-service to the web community.
After many, many years of great service, del.icio.us has once and for all been destroyed by corporate idiocy. It's a great example of what goes wrong when a major web company buys a start-up, and then simply runs it into the ground. Way to go, Marissa Meyer, et all!
Understandably, the amount of revenue it (didn't) generate, vs. the operational costs to maintain storage and traffic of the service, do not make it an appealing service to offer or retain. I get it, but it's a shame more wasn't done to integrate some sort of ad-based revenue generating solution to that problem.
For years, I've used del.icio.us to bookmark sites, and be able to view them on my website via the REST API, or integrate the bookmarks into any laptop/desktop that I have, which was very convenient. However, those days seem to be over.
According to wikipedia... "On June 1, 2017, Delicious was acquired by Pinboard, and the service will be discontinued in favor of Pinboard's paid subscription-based service."
Such a shame.
R.I.P. Delicious. You were great while you lasted!