PEP 752: Address feedback, round 6 (#4329)

Author: ofek

peps/pep-0752.rst

@@ -186,10 +186,8 @@ Organizations
 -------------
 
 Any package repository that allows for the creation of projects (e.g.
-non-mirrors) MAY offer the concept of `organizations`__. Organizations
-are entities that own projects and have various users associated with them.
-
-__ https://blog.pypi.org/posts/2023-04-23-introducing-pypi-organizations/
+non-mirrors) MAY offer the concept of organizations [6]_. Organizations are
+entities that own projects and have various users associated with them.
 
 Organizations MAY reserve one or more namespaces. Such reservations neither
 confer ownership nor grant special privileges to existing projects.
@@ -235,12 +233,12 @@ detected when any existing namespace starts with the proposed namespace.
 Uploads
 -------
 
-If the following criteria are all true for a given upload:
+If the name of a package being uploaded matches a reserved namespace and either
+of the following criteria are true:
 
-1. The project does not yet exist.
-2. The name matches a reserved namespace.
-3. The project is not owned by an organization with an active grant for the
-   namespace.
+* The project does not yet exist.
+* The project is not owned by an organization with an active grant for the
+  namespace.
 
 Then the upload MUST fail with a 403 HTTP status code.
 
@@ -389,6 +387,16 @@ None at this time.
 Rejected Ideas
 ==============
 
+Granting reservations to users
+------------------------------
+
+As package repositories have a flat namespace, allowing any user to reserve a
+namespace would be untenable not just because there would be
+`contention for a finite resource`__, but also because no repository has enough
+human operators to manage the vetting of an arbitrary number of users.
+
+__ https://en.wikipedia.org/wiki/Tragedy_of_the_commons
+
 .. _artifact-level-association:
 
 Artifact-level Namespace Association
@@ -756,6 +764,9 @@ Footnotes
 .. [5] `Detailed write-up <https://discuss.python.org/t/64679>`__ of the
    potential for provenance assertions.
 
+.. [6] As an example, PyPI's concept of organizations is described
+   `here <https://blog.pypi.org/posts/2023-04-23-introducing-pypi-organizations/>`__.
+
 __ https://www.sphinx-doc.org/en/master/usage/extensions/index.html
 __ https://airflow.apache.org/docs/apache-airflow/stable/authoring-and-scheduling/plugins.html
 __ https://airflow.apache.org/docs/apache-airflow-providers/index.html