When people write docker instruction that makes use of docker run command without a detached flag.

Why is it annoying?

Say I SSH into a server, fire up a new service, wait for it to download all the necessary images and perquisites, got it all running nicely. Now all i want is to close the tunnel and go on doing other things. But no, you realize docker is still occupying your terminal. Closing the connection now would also kill the service you just launched. How stupid is that.

Sure it’d only take a few additional seconds to rerun it in detached mode, but that’s still an additional 15-20s of utterly wasted time. There’s no excuse to write instruction this poorly especially for a project with multi thousands users, and especially now that we can get a machine to write better instruction for you.