"Oes Tsetnoc" is just actually the reverse of "SEO Contest". This is the key phrase the participants are going to compete with. When a user types "oes tsetnoc" in Google's search page, the first one to appear in the result page is the winner of the contest.
When you create a website, it is not enough that you are just going to let it sit there. How can your users find your site? By telling them? That will be okay if you want only ten of your friends to read your website. But if you want to let the world know about your site, then there must something to be done.
That's where SEO enters the scene. SEO practitioners are going to apply some changes on your site so that the search engine crawlers will will visit your site and rank it in their result pages. There's really a lot of things to perform to get to the top spot and that's what the participants in the contest are doing right now.
For beginners, it is better to join these contests to determine if your strategies are at par with the best SEO's in the world and if not, then analyze what are the things you lack in your SEO arsenal and through that way, you will improve in the next contest and in your own personal SEO campaign. oes tsetnoc.