!!! Overview
[{$pagename}] or the phrase "[NOT RECOMMENDED]" ([RFC 2119]), which are [Case-sensitive] ([RFC 8174])  mean that there may exist valid reasons in particular circumstances when the particular behavior is acceptable or even useful, but the full implications should be understood and the case carefully weighed before implementing any behavior described with this label. 

We may use [{$pagename}] in other contexts but we are implying the same interpretation as a [Best Current Practice]

!! More Information
There might be more information for this subject on one of the following:
[{ReferringPagesPlugin before='*' after='\n' }]