They are impossible to miss. Seriously, they are. For the better part of the past hundred years, the warning has appeared in simple English. A Spanish version was added once Latin American players became a regular part of the game, and in the past 30 years or so, so has a Japanese one.
The message is direct and it is unambiguous:
“Any player, umpire, or Club or League official or employee, who shall bet any sum whatsoever upon any baseball game in connection with which the bettor has no duty to perform, shall be declared ineligible for one year.
“Any player, umpire, or Club or League official or employee, who shall bet any sum whatsoever upon any baseball game in connection with which the bettor has a duty to perform, shall be declared permanently ineligible.”

1 hour ago
3
English (US)