![](https://lemmy.world/pictrs/image/2a292e7c-cae3-4f5b-b552-3ac4935e930d.png)
![](https://lemmy.world/pictrs/image/0d5e3a0e-e79d-4062-a7bc-ccc1e7baacf1.png)
I’m assuming by “dot” you meant @
In fact both are optional. With FQDN-Adressing a user without domain defaults to localhost, with Bang-Adressing there is no @ because the last system is left for interpretation of the last receiver and if he consideres it a user, so be it.
In my whole life I never bought digital audio or video content on vinyl, VHS, CD, DVD, Blueray. Never ever. It sounds as weird to me like paying for air to breath.
But one day I visited a live concert of a small band which I loved as a teenager. After the show I met with their drummer, gave him €200 cash and said “You know, when I was young you were cool about kids copying your music without paying. You told us if we like you music we can enjoy it. And if we can afford it, we can pay you. Back then I couldn’t. Today I can.”
And so I paid them five times as much as I saved back then by copying their music.