He's offered to provide a "price range". Nothing but a "price range". He's made mention of nothing else.
I assume if anyone applies for this "price range", they will not subsequently be provided with email after email after email seeking their business, offering "information", requesting more "details", offering "advice" etc etc etc etc etc etc etc. (unless these extras are requested of course). I suspect I'm correct with my assumption, so good on ya.
I'm sure he's 100% honest and upfront and NOT spruiking for business here under the guise of providing a "price range". That's wonderful, and thanks for providing such a service for those interested in the value of their property. Great!