My website is Wordpress-based, so I use the plugin "Social Network Auto Poster" to automatically submit my full post content to 4 blogs: Wordpress, Blogspot, Livejournal, Tumblr. Besides, I also manually submit these articles to some more blogs like Forexstreet.net, Quora, and some forums.

My question is:
1. Does this harm the search engine optimization for my website?
2. Does this prevent my website from being approved by Adsense if I apply to the program later on?

Thank you very much.