The Magic Judge Blog version of that IPG section has a more detailed description of why those examples are problematic:
In each of these examples, a player takes an action or fails to take an action in a way that is impacted by illegal communication. In the first example, the opponent makes a choice regarding the discard spell assuming that the player has ...
From a link on the page that ConMan so helpfully provided:
Penalties are carried out in the event of rule violations which may cause hindrance to others and/or disruption of the event.
Please note that the penalties listed on this page is not exhaustive, and the actual penalties enforced may vary depending on severity.
The Official Tournament ...
I propose a system where each game night has 20 points to allocate. You divide the points between the number of times you play that game. (e.g. You play a game 2 times, 10 points for each game).
The allocation of the points is:
~25% to winner, ~15% to second place, ~20% each to three achievements.
The set amount of points fits #1.
The scores for wins/...
The main parts of the Tournament Rules and Guidelines that may be applicable in an official match, as far as I can tell, are:
During the duel, all actions taken by either duelist must be made clear and acknowledged by both sides.
[It is considered misconduct to be] Talking and/or exchanging advice/information other duelists, spectators, or other third ...