perspective? I heard marketers do this for traffic but if you trying to rank your site for keywords, does having 50 articles from Ezine make it any better then 1 article from Ezine?
My guess is, that if you publish 50 articles with different deep links of your site, google will crawl better those deep pages of your site, will transfer pagerank from the article site and you will have a link to your deep link site with an anchor of your choice. For those things, i think submitting multiples articles to an article site it's good for your site optimization.
I submit multiple articles on Ezine but each article's title is related to the keyword I am promoting and it links directly to a relevant page. Maximum impact if your keywords are in URL and title of the page that's linking to your site.