Insane cross reference (<>)

When you use an insane cross reference (<>) such as in:

Cross references are awesome.

it gets expanded exactly to the sane equivalent: so we see that the \x magic argument gets added. It is that argument that for example adds the missing -, and removes the pluralization to find the correct ID cross-reference. For more details, see the documentation of the \x magic argument.

Like other insane constructs, insane cross references are exactly equivalent to the sane version, so you can just add other arguments after the construct, e.g.:

Section "Cross reference (\x macro)" are awesome.

which gets converted to exact the same as the sane:

Section "Cross reference (\x macro)" are awesome.