style: more info, comment out unneeded log

src/dumper/dumper.cs

@@ -135,7 +135,7 @@ class Dumper
             if (!TryGetProp<int>(props, "CharacterIndex", out int charIndex))
                 throw new KeyNotFoundException("CharacterIndex was not found.");
 
-            if (charIndex == -1) return;
+            if (charIndex == -1) return; // there is a -1 character (template, placeholder, spectator or smth)
 
             if (!TryGetStringProp<FText>(props, "DisplayName", out string charName) || !TryGetStringProp<FName>(props, "IconFilePath", out string charIconFilePath))
                 throw new KeyNotFoundException("DisplayName or IconFilePath was not found.");
@@ -319,7 +319,7 @@ class Dumper
             }
         }
 
-        _log.Error($"Property '{propName}' returned an empty or null string.");
+        //_log.Error($"Property '{propName}' returned an empty or null string.");
         value = string.Empty;
         return false;
     }