Well first off, and I will admit I did assume this was going to be an easy inference in the post you quoted so I apologize for the confusion, I was suggesting that the vehicle related portion of the electrical bill would be less than current vehicle fuel costs. Obviously not going to count the cost of my home A/C against my vehicle fuel costs, because that makes no sense. And two, you don't have to charge every night. Surely you don't get gas every day do you? But you could, and it'd realistically be irrelevant towards your monthly bill anyways.
But I don't really have to imagine... as I mentioned in one of my earlier posts here, my neighbor told me his car brought up his electric bill by approximately 45 dollars a month - and he drives it quite a bit. It costs me near double that, just to fill my tank once.
So yes, your electric bill will obviously increase in cost if you're charging an EV - that's essentially a given. But if you remove the fuel cost from your monthly expenses, you're almost undoubtably net positive. For example, I spend $200 a month in gasoline. Drop the truck, get an EV, and my electric bill goes up $50. Now, I spend zero in gasoline, but $50 more on electricity. End of the month, my cash flow is +$150.
I'm sure
@Evguy1 could actually comment on his current owning an EV electric bill costs as well.