Yeah, the OP's advice makes sense only if you're looking to get the theoretically highest possible offer, to where you surprise yourself, like holy shit I didn't know it was possible for me to land this number! If you know what you want and have room to decline an offer below that, the OP's advice does not apply much. In fact, if you take the OP's advice, you're opening yourself up to wasting time with chumps who were never going to meet your internal number.