[fauigerzigerk]

This could easily turn out to be counterproductive. It would provide an additional incentive to hide marketing in all kinds of other business activities rather than openly advertise what's on offer.

Marketing is already difficult to tell apart from other company communications, product documentation, etc. What about a company blog showing how to use their products? Is that marketing or product documentation?

[collaborative]

The point is that "openly" advertising would be capped. That would reduce the price of doing so, making it more affordable to smaller players and removing the insane profits ad monopolists enjoy today. Plus, "openly" advertising is one of the most effective ways of advertising. Lastly, by diverting marketing budgets to non-traditional routes (charity donations, etc), the economy would benefit as money would be spread more evenly across