PEP 810: Add clarification on the warnings for global mode (#4667)

Author: pablogsal

peps/pep-0810.rst

@@ -591,9 +591,12 @@ After several calls, ``LOAD_GLOBAL`` specializes to ``LOAD_GLOBAL_MODULE``:
 Lazy imports filter
 -------------------
 
-*Note: This is an advanced feature. Library developers should NOT call these
-functions. These are intended for specialized/advanced users who need
-fine-grained control over lazy import behavior when using the global flags.*
+*Note: This is an advanced feature. These are intended for specialized/advanced
+users who need fine-grained control over lazy import behavior when using the
+global flags. Library developers are discouraged from using these functions as
+they can affect the runtime execution of applications (similar to
+``sys.setrecursionlimit()``, ``sys.setswitchinterval()``, or
+``gc.set_threshold()``).*
 
 This PEP adds the following new functions to the ``sys`` module to manage the
 lazy imports filter:
@@ -672,9 +675,12 @@ Example:
 Global lazy imports control
 ----------------------------
 
-*Note: This is an advanced feature. Library developers should NOT use the global
-activation mechanism. This is intended for application developers and framework
-authors who need to control lazy imports across their entire application.*
+*Note: This is an advanced feature. This is intended for application developers
+and framework authors who need to control lazy imports across their entire
+application. Library developers are discouraged from using the global activation
+mechanism as it can affect the runtime execution of applications (similar to
+``sys.setrecursionlimit()``, ``sys.setswitchinterval()``, or
+``gc.set_threshold()``).*
 
 The global lazy imports flag can be controlled through: