Could you evaluate my site?

Hello friends,

Could you evaluate my website http://www.otoariyorum.com in terms of SEO, appearance, external links, etc.?

My site is 10 years old; for the first 6 years, it was ranking very well. It had 8-9k daily hits. Whatever happened in October 2010, the daily hits dropped from 8k to 3k in a single day, then to 1.5k, and then kept dropping and dropping, and the current situation is around 150 :frowning:
http://[url=lkGkDb.gif - Hızlı Resim]http://i.hizliresim.com/lkGkDb.gif

http://http://s7.postimg.org/p6b310r7b/analy.jpgAnalytics image: link http://s7.postimg.org/9xl5n8xiz/analy.gif

When I experienced a huge drop in 2010, I renewed the design in 2011, and did things like buying links from forums etc., but it seemed to sink even more. Do you think it is possible for me to save this site? It’s a shame for the site. What would you suggest I do? I have the oto-ilan.net domain which I bought 10 years ago and is currently redirected to this domain; should I do a 301 to this domain? Would it provide any benefit?

I would appreciate it if you share your thoughts.

Mitula publishes licensed content. And has been publishing for the last 1-2 years. This has nothing to do with it.

Man, why is my site full of duplicate content? 1. I am not the one copying, it is the Mitula site. 2. It takes the listings with permission, and the listings on Mitula redirect directly back to the site owner as a link.
3. As I indicated, the start date of this business is not Mitula. Mitula has existed for the last 2 years, the decline started before that! 4. There is no such thing as a single-line description. I don’t know which listing you looked at to make this comment. Each listing has a different description; naturally, some are 500 characters, some are 100.