Most people who write really good articles, which are well targeted will notice the number of Ezines, which pick up their articles from online article submission sites. But if this is your goal as an online article writer then how do you really know what level of quality they are looking for? Well consider if you were sending out an article to someone already very knowledgeable about a subject, as they were an editor for a Trade Journal?
Would you make sure it was near perfect? Indeed I bet you would. Now then let us discuss the issues with the fact the Ezine Editors are looking for "no spelling errors," out of placed words, improper punctuation because they are in a way competing against or co-branding with the very same trade journals in some cases.
Also you may wish to watch too much opinion, as that really belongs in the "opinion section" of an online article website, not in an article you hope to have an Ezine pick-up, unless your opinion is targeting a political Ezine with a specific viewpoint. Realize also that if you start getting off topic or are too critical you lessen your chances of being picked-up by an Ezine, besides why burn bridges in your industry? Cooperation makes more money long term remember the "Beautiful Mind?" I hope you will consider all this in 2006.