There are many techniques that people use to game the system (I'm not recommending them and I don't use them) but we both know that it goes on and that there are ways to do it and avoid detection.
If you want your money site to stand the test of time - high-quality authoritative content is king. You also need to use the proven white-hat techniques that you have been sharing with your readers in this series. If you don't google will eventually catch up to you and your money site may go from page 1 one day to de-indexed the next. It really isn't worth it.
If you've selected a good niche and done all of the right white-hat techniques your site will be on page 1 - it takes longer but it gives you peace of mind knowing that your site is future-proofed and will keep paying you for years to come.
Thank you this series. I just found you thanks to @donkeypong and I'm now following you.