Is there a reason for rel="shortlink" yet?

I recently added a URL shortener to a blog I run so my writers can use it when posting links to Twitter or in our forums and emails. It’s really nice: we use a domain that is a shorter version of our name rather that some one else’s name like “bit.ly”; we have control over the path so instead of randomness at the end like “bit.ly/2jd#t6e” we can use something specific like “ourshortdomain/bestof09”; plus we can keep full stats on the clicks.

As part of the upgrade I’ve added the [ link rel=shortlink href=URL ] code to our headers. I was hoping that when a site like Twitter saw our full URL they would auto shorten based on our metadata. No such luck.

It’s not a big deal. We can paste the short links ourselves. I was just wondering if the rel=shortlink code was actually being supported anywhere or is this just a future-proofing measure.