An unnamed person in my alliance is 9ish so prestige right now. he has a insta tran hero right now and claims to have at least 500k archers per city and a war city with -100mil food. he got told yesterday to think before hitting someone who was 15mil prestige. we had a good laugh about it. Fact is he could port next to someone way higher prestige and they would probably reinforce half as many troops as if he was the actually 50-60mil prestiger he is. prestige looks cool but can be a disadvantage. oh and he doesint need the prestige anyways, our alliance is already 1bil prestige, so the prestige starts mattering alot less.
that just to say prestige dropping is a smart tactical advantage that can make you seem harmless. NEVER underestimate a prinzzessin whith 10 cities