Making people laugh and triggering people are quite different motives

The source is doi:10.1001/archderm.143.12.1543 by the way

And is just happened to be like this because of email. https://www.rfc-editor.org/rfc/rfc805.txt:

The major conclusion reached at the meeting is to extend the “username@hostname” mailbox format to “[email protected]”, where the domain itself can be further structured.