[tannhaeuser]

With SGML it's not an either-or. You can have both angle bracket markup syntax with HTML empty element rules, tag inference, and other short forms, as well custom Wiki syntax at the same time.

For example, you can say in SGML that the character '-' at the begin of a line when appearing below a particular parent element should start a line item, using a SGML shortref map/use declaration.

Blends particularly well with markdown eg. where in regular markdown you can use literal HTML, in markown+SGML you can make use of full SGML.