It would turn the world upside down but probably in a good way.
I think you're right, I think it's a huge bubble.
I want to know how you equate normal conversation to advertisement, because to me that seems like the linguistics version of moral relativism.
" Verb
3. transitive. To give notice of (something); to make generally known.
4. a. transitive. To make generally known by means of an announcement in a public medium; spec. (a) to publish information about (a person (now rare), thing, circumstance, or event) so as to attract public attention; (b) to describe or present (a product, service, or the like) in order to promote sales. Frequently with by, in, on the medium specified (as a journal, radio, television, etc.). (Now the most common sense.)
b. intransitive. To publicize or promote something in this way.
Noun
2. a. The action or process of advertise v. 4; publication of an announcement in a public medium; (concrete) the result of this; advertisements collectively. Cf. self-advertising n. at self- prefix 1b(b).
b. The activity, trade, occupation, or profession of advertising or producing advertisements, now typically for a commercial product or service. "
When Plato gave the definition of man as "featherless bipeds", Diogenes plucked a chicken and brought it into Plato's Academy, saying, "Behold! I've brought you a man"
As a first party, you could of course be paid to produce any speech you want by the recipients of that speech (e.g. people can buy a book you write yourself, join your YouTube channel, etc.). You can also promote your own commercial activity (e.g. "buy my t-shirts" is allowed because it is direct).
Practically speaking, this would mean that, e.g. Procter and Gamble could promote Tide on their own website, but they couldn't pay anyone else to promote it. An individual could make a video about how much they love Tide, but PG couldn't pay them to make that video (or give them free product, discounts, etc. to induce them to make that video).
Businesses wouldn't be able to pay people to review products, or leave reviews on Amazon, etc.
Things PG could do: go around the country giving free laundry courses where they show people how to use Tide in the best way, while simultaneously extolling the virtues of using Tide vs. its competitors (buy they would not be able to advertise these events, of course, instead relying on word of mouth and their own website).
IMO, limiting advertising (as defined above) would dramatically improve the signal-to-noice ratio of the speech in the world, without limiting anyone's fundamental rights. If anything, it's normalizes the reach of everyone which enhances the positive benefits of free speech.
Once people started calling typing to each other on the internet "community", it was basically over for actual community...
Now, you're pwn'd...