How Google Sandbox Destroys SEO & Motivation

What is Google Sandbox?
Google Sandbox is a tool, filter, algorithm developed by Google and is here to find website spammers or low-value websites without relevant content. The result of such action is that your site, even one or two months after your search engine optimization, is not visible on the search results and is not getting any organic traffic from Google.

How Destroys SEO?
Google Sandbox is a great idea but in practice, it is just something that destroys motivation and real-logic SEO. Here is the example of our website: coupondetect where we try to make some great things where people can find great deals, online coupons and promo codes for their favorite stores and save money.

We work hard, for example, our team finds 100 great deals or some discounts up to 90% and pafff, nobody cannot find this and nobody can save money because Google puts our website to Sanbox and not sending us any organic traffic. Our collected coupons and deals will expire after some time and what we work for and for whom?

Those coupons that we could find out for that month have disappeared and are no longer valid. We worked for nothing and people did not save any money. What do you think about Google Sandbox please let us know in the commentary.