So wonder if:

 {quote } =>

As opposed to an otherwise error/warning upon the evaluation of (quote )?

> Sorry, last line should have been:
>
>  (' #; <s-exp>) :: ({quote {remove <s-exp>}}) => ((quote )) ; empty quote
>
>> So in summary, it would seem that all reader actions invoked by a reader
>> transform token should apply to the following correspondingly processed
>> <s-exp>, implying: (showing only reader actions)
>>
>>  (' ' <s-exp>) :: ({quote {quote <s-exp>}}) => ((quote (quote <s-exp>)))
>>
>>  (#; #; <s-exp>) :: ({remove {remove <s-exp>}}) => ()
>>
>>  (#; ' <s-exp>) :: ({remove {quote <s-exp>}}) => ()
>>
>>  (' #; <s-exp>) :: ({quote {remove <s-exp>}}) => (') ; error, unbound 'quote
>
>