You don't need to know the account or account number, just need to know the transaction logic, which most backend developer will know of as long as they work in that area.
If the product managers keep boasting about their new strategy (which I have seen in almost all companies I have worked for), even the juniors will know what's going on.
This is like claiming someone set up a special account where all their paychecks on rainy days get spent directly on weed. It makes zero sense.
I'd put this into that bucket of "someone I trust told me they heard the story from someone they trust". It means the story may not be true and they don't have any hard evidence, but they found it believable enough to repeat.
> Money is anonymous.
Unless you pay in cash (or some cryptocurrency that doesn't leave traces), money is not anonymous. Not sure what made you make that claim.
> Why would they have some kind of pipeline account that goes directly from the fees to political spend?
Is the pipeline account you mention here the delivery company's account?
> This is like claiming someone set up a special account where all their paychecks on rainy days get spent directly on weed. It makes zero sense.
Pretty sure that already happens, that's one of many ways to do tax evasion with offshore accounts.