Template date would include information about: the template always must be substituted (w:Help:Substitution ).
By the way, how can I include this link (w:Help:Substitution ) in the TemplateData?, to help people about what substitution means ?.
If in TemplateData appears subst=yes
or similar, the template would be automatically substituted when used (without the need of using the subst:
modifier in the own template.)
See: w:bugzilla:2003 – feature request to allow marking a template as being substituted without "subst:"