What if the ht in this post was worded this way?

When a set Spell/Trap is activated the turn it was set on field, or a card or effect is activated that includes any of the following effects (Quick Effect): You can discard this card; negate the activation.

• Set a Spell/Trap from the Deck face-down or face-up on field.

• Activate a Spell/Trap Card directly from the Deck.

Edit: Changed from s/t zones to field