Imo it is not possible for google to detect properly spun content, it is not worth computing power it requires. They can do this using ngrams for example, but it is uses a lot of queries. And for example article spinner I coded beats this algo, so google cant detect that the content is spun. Manual spinning is also good but it takes more than 30 minutes per article.
If you consider that you can spin articles with Search Engine Optimization (SEO) in mind it definitely makes Spin Rewriter 9.0 worth the money. Your articles will now be able to rank in Google for your keywords you want to rank for. The more content you can produce and put on your website the quicker Google will rank you. This allows you to quickly create scalable evergreen content that will rank for years.
Anyone can do this, all you need is a computer and the ability to string a sentence together. You can write original articles and submit them to article directories and get paid. You have to apply to these sites and may or may not get turned down. If you should happen to get turned down then just keep plugging away until you find someone to "hire" you.