DOC: Inform users that incomplete reports will generally be closed (#62054)

Author: rhshadrach

.github/ISSUE_TEMPLATE/bug_report.yaml

@@ -26,7 +26,8 @@ body:
       label: Reproducible Example
       description: >
         Please follow [this guide](https://matthewrocklin.com/blog/work/2018/02/28/minimal-bug-reports) on how to
-        provide a minimal, copy-pastable example.
+        provide a minimal, copy-pastable example. Reports without reproducible examples will generally be closed
+        until they are provided.
       placeholder: >
         import pandas as pd
 

.github/ISSUE_TEMPLATE/documentation_improvement.yaml

@@ -28,7 +28,8 @@ body:
     attributes:
       label: Documentation problem
       description: >
-        Please provide a description of what documentation you believe needs to be fixed/improved
+        Please provide a description of what documentation you believe needs to be fixed/improved.
+        Reports without a clear, actionable request will generally be closed.
     validations:
       required: true
   - type: textarea

.github/ISSUE_TEMPLATE/feature_request.yaml

@@ -21,7 +21,8 @@ body:
     attributes:
       label: Problem Description
       description: >
-        Please describe what problem the feature would solve, e.g. "I wish I could use pandas to ..."
+        Please describe what problem the feature would solve, e.g. "I wish I could use pandas to ...".
+        Reports without a clear, actionable request will generally be closed.
       placeholder: >
         I wish I could use pandas to return a Series from a DataFrame when possible.
     validations:

.github/ISSUE_TEMPLATE/performance_issue.yaml

@@ -25,7 +25,9 @@ body:
       description: >
         Please provide a minimal, copy-pastable example that quantifies
         [slow runtime](https://docs.python.org/3/library/timeit.html) or
-        [memory](https://pypi.org/project/memory-profiler/) issues.
+        [memory](https://pypi.org/project/memory-profiler/) issues. Reports
+        without reproducible examples will generally be closed
+        until they are provided.
     validations:
       required: true
   - type: textarea