<<6.2 Pilots of aircraft believed to have created the wake turbulence will be informed by ATC and are requested to complete the appropriate sections of form SRG1423. The sections are identified on the form. (emphasis added)>>
That's been the case for m any, many years. It means that if a pilot reports wake turbulence then the pilot of the aircraft causing it is asked to complete a form. I must have done it hundreds of times.