Google has penalized millions of site which are not according to google algorithm. They have almost 21 factors that are common on the site. When Google finds any site which matches that factor then google puts it in the category of spam. Google gives a penalty to that site means that type of the site never ranks. Google loves genuineness .time by time google comes with an update that says you need to do like this way . If you have practiced the right method from beginning then you don't need to worry about updates.