I'm afraid social methods embeded into HTTP would go the same way LINK/UNLINK (http 1.0), and DELETE,PATCH,OPTIONS,TRACE went - mostly forgotten, and rarely use

I'm afraid social methods embeded into HTTP would go the same way LINK/UNLINK (http 1.0), and DELETE,PATCH,OPTIONS,TRACE went - mostly forgotten, and rarely used. Practice has shown that some things are better solved on a higher layer.