doc: clarify the meaning of legacy status

doc/api/documentation.md

@@ -40,9 +40,10 @@ The stability indices are as follows:
 
 <!-- separator -->
 
-> Stability: 3 - Legacy. The feature is no longer recommended for use. While it
-> likely will not be removed, and is still covered by semantic-versioning
-> guarantees, use of the feature should be avoided.
+> Stability: 3 - Legacy. It is the same as a forever Documentation-only
+> deprecation. While it likely will not be removed, and is still
+> covered by semantic-versioning guarantees, use of the feature is no longer
+> recommended as it is not officially supported by the project.
 
 Use caution when making use of Experimental features, particularly within
 modules. Users may not be aware that experimental features are being used.

doc/api/url.md

@@ -1558,11 +1558,12 @@ A `TypeError` is thrown if `urlString` is not a string.
 
 A `URIError` is thrown if the `auth` property is present but cannot be decoded.
 
-Use of the legacy `url.parse()` method is discouraged. Users should
-use the WHATWG `URL` API. Because the `url.parse()` method uses a
-lenient, non-standard algorithm for parsing URL strings, security
-issues can be introduced. Specifically, issues with [host name spoofing][] and
-incorrect handling of usernames and passwords have been identified.
+Use of the legacy `url.parse()` method is not encouraged as it is not officially
+supported by the project. Users are recommended to use the WHATWG `URL` API
+instead. Because the `url.parse()` method uses a lenient, non-standard algorithm
+for parsing URL strings, security issues can be introduced. Specifically, issues
+with [host name spoofing][] and incorrect handling of usernames and passwords
+have been identified.
 
 ### `url.resolve(from, to)`