If I would "unduplicate" this, I would also close it as off-topic, maybe with a suggestion to read this book.
The reason is that your question doesn't deal with an actual current problem you have with administering a system under your control. Instead, it's largely deals with understanding how DNS (and the murky business side of it with it spammers etc.) work on a fundamental level. This is off-topic.
Technically, the answer linked is the answer to your question: No, new domain names are not advertised via DNS because that is not how DNS works and the links and comments I gave explained what happens instead.