Not to be controversial but this could be abused in some sense. Though the forum prohibits the use of software display that is unknown to the player, timing labels is one example I could think of that could be a determining factor. Say a game has a timing cycle, say a platforming like crash. The players knows the game started at say 3:44.000. However, timing a cycle every 7 seconds is very difficult to calculate. But with the use of prescripted code that prints in a notepad, a note could read 4:19, 4:26, 4:33. Timing such point would be relatively hard to memorize, especially while concentrating on different gameplay aspects. After all, a run where it's you start that level at about 4:20, it's very easy to read 4:26 and think of 4:26 + 0:01. Even adjusting for later times could be possible, even with varying starting times.

So, I get it how notepads nullify memorization in some games, but I wonder if this could give an unfair advantage to some players, who in the technical sense neither modified the game, nor used info unavailable to the player at the time of run gameplay.