Sadly unconvincing effort chickaxe but perhaps try on the other thread.
Anyway, you and carol must have missed the latest narrative which I have been informed of by other Leavers, which is that stockpiling is the sensible thing to do (and has been for decades apparently).
Actually, I personally don't really think we're heading for a food riots/power cuts/eating our pets scenario, and therefore I'm not really prepping as such, just putting the odd extra tin or bottle in my trolley each week. I'm more with jasjas in hoping that we will pull back from this belligerent insanity and at least sort out a temporary transitional deal.
BUT! If today I were to simultaneously run out of bread, milk, vegetables, painkillers, cash, petrol and have a freezer breakdown, I’d be pretty annoyed but am sure that I could step out of my door and restock all of the above now. How many people have complete cast-iron certainty that this all will continue to be the case as we make the transition from one set of systems to the other? Let alone in the aftermath of a No-Deal Crash to Freedom? I've seen disruption and shortages caused by far smaller and simpler events than this.
But if you are 100% confident, then do nothing. Do nothing at all - not a grain of rice or tin of beans, to keep your freezer empty, no petrol in car, no cash. Feel free to type "Hysterical scaremongering" on every thread that mentions prepping.
If everything does turn out fine, I'll have a bunch of stuff that I will be using anyway so it's not a loss to me. If there are a few days/weeks of disruption on the joyous leap into the Sunlit Uplands, I'm not the one who is going to have to say "Sorry DC, this week's food is the last turnip from the shop, because Mummy was too embarrassed by a bunch of angry pixels on an Internet talkboard to set aside some tins."