Probably implies that the recod is worn with a bad hiss, hence the reason for playing it with a 78 stylus. A 78 stylus does drown out hisses, even on vinyl.
Mind you, I've bought from Nathan on numerous occasions and found his gradings to be honest. He's one of these characters with a good personality, and a distinctive sign-off to all correspondence:
"Have a blessed day, in Jesus's name!"