Aureus said:
The vast majority of the population don't care about silver.
Stack food if you're a doomtard, you can't eat silver (yeah, i know you can drink it, don't even bother with that lame joke).
Don't trust banks? then stack gold, at least most people see that as something valuable.
Stockpiling food, (while the market is functioning normally, and you are not depriving anyone else), is not considered "hoarding".
The price of food can skyrocket at anytime, regardless of the general political/economic climate. Problems with bad weather-related growing seasons, labor issues, transportation costs, and natural disasters, can all lead to temporary shortages, and their attendant higher prices.
During such times, having enough food on hand, can help mitigate any shocks to your budget, and provide a measure of "insurance" against any personal hardship or emergency.
It is also the morally right thing to do - as you will not be in the streets, competing with your neighbors for the limited rations that are available during a time of scarcity.
Such advanced preparedness will free you from the desperate and immediate need for the most basic necessities, and free you up to focus on your longer-term strategy.
In the event that paper currency collapses (or is simply inflated into oblivion), the prices of houses, cars, computers, and food, will no longer be relevent.
Having a stack of silver/gold will provide you with a valuable medium of exchange in situations where simple barter is insufficient to meet the needs of either trading partner - for example: when you want to trade you boat for a car, but the other guy doesn't want a boat.
Sivler stacking and food storage are not mutually exclusive. The two strategies work well together as a sensible savings plan, especially when the banks are paying such paltry interest on fiat deposits.