Past a point, this becomes like those building regulations and other points of governance, that are not actually publicly available.
And your democracy fails. Because how can people govern, including themselves, when they don't even know what the rules are? Where the "lines" are?
Maybe, ultimately, it would be more useful to effectively inform the public about such funding, than to hide it away.
Also, there's been another round of conversation in the last some days, about "cashless" payment systems and societies.
What happens, when some initiative or data point -- or someone's personal agenda -- flags you as "suspect"?
When your cards are suddenly deactivated, your accounts frozen, and no one will tell you why? Nor for how long?
This secret behavior -- this secrecy -- needs some serious and effective limitations.
Or we are all going to be at risk of violating society's "terms of service", and made pariah, without explanation nor recourse.
Slippery slope...