simplify error handling

get_saint_of_the_day.py

@@ -196,7 +196,6 @@ def main():
         print("No saint's day today (or today is a holiday/feast day).")
         return
 
-    post_errors = []
 
     for saint in saints:
         print(f"Saint: {saint['name']}")
@@ -219,14 +218,9 @@ def main():
                     print(f"  Posted! URL: {status['url']}")
                 except Exception as e:
                     print(f"  Error posting: {e}")
-                    post_errors.append(str(e))
-
+                    raise
         print()
 
-    if post_errors:
-        print(f"{len(post_errors)} post(s) failed", file=sys.stderr)
-        sys.exit(1)
-
 
 if __name__ == "__main__":
     main()