conformance clauses: "recommended" vs "we recommend"

From the html 4.01 
spec:

 

In this section, we begin the specification of HTML 4, starting with the 
contract between authors, documents, users, and user agents.

The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", 
"SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be 
interpreted as described in [RFC2119]. However, for readability, these words do not 
appear in all uppercase letters in this specification.

At times, the authors of this specification recommend good practice for 
authors and user agents. These recommendations are not normative and conformance 
with this specification does not depend on their realization. These 
recommendations contain the expression "We recommend ...", "This specification 
recommends ...", or some similar wording.