Until they inevitably get acquired and all the links eventually break. Please don't use 3rd party link shorteners, host your own if you REALLY have to.

About twenty years ago I used tinyurl.com/lvorv to link to a flash animation.

I assume there's some divine intervention going on, but it still works!

It links to https://www.albinoblacksheep.com/flash/mudah

The other advantage here is that it's really easy to tell at a glance if one of these "shortened" links authentically points to a real government website; just answer: does it start with nyc.gov?

That's a really good thing.