He probably assumed you were using the preservative and his comments were probably correct. The cleaner on the other hand leaves no residue and after using it for more than thirty years I can attest that LAST cleaner is an excellent product. I clean my stylus with it before every record I play which contributes significantly to the sound quality.
Just like when people say Rega turntables have speed stability issues when they were only known to run a little bit fast. Semantics!

