User:Hide Head Turtle/"Why are they BKSS rulings?"

The BKSS ruling
"If you activate “Zombie Master’s” effect, and an effect is chained that removes “Zombie Master” from the field or flips it face-down, the effect disappears and you cannot Special Summon the targeted monster."

Why is it BKSS?
The OCG Japanese card text for Zombie Master states:


 * "このカードがフィールド上に表側表示で存在する限り,...".

A more correct English translation would be:


 * "As long as this card is face-up on the field,..."

This means that Zombie Master has to be face-up on the field for its effect to resolve properly.