There's really no drawback to it. If you're in secrecy, it's free and essentially gives you resources. If you're not in secrecy, it reduces your threat, hopefully back to secrecy! And either way it gives you a card. Simply put, this card is awesome. One coin (or nothing, in secrecy!) for 1 card and -2 threat in ? Thank you very much, ALeP!!!
A Lesson in Caution
Event. Cost: 1.
Action: Draw 1 card. Then, either reduce your threat by 2, or the next card you play this phase gains secrecy 1.
Hobbits go light, and their footprints are not easy even for a Ranger to read… —The Two Towers
ALeP - The Aldburg Plot #4. Leadership.