After twelve years in this business, I've had plenty to do with ezine articles, especially when they posted my ripped content under one of their member's names. Why you would suggest that someone put their original work on any article farm merely to have their grammar checked is beyond my comprehension. Google penalizes content they find on farms and posting on one of them is certainly no way to build expertise or credibility as a writer.
True, content checkers make some mistakes but they catch they major ones. Just like anything, if you disagree with something they have tagged, you need to make your own decision and there are plenty other credible resources on the web that can help you learn to do that.
- Take a writing course or test at Brainbench.
- Take the time to look through the AP manual of style.
- Take advantage of sites like Purdue's Owl.
Although writing well takes talent, it is basically a skill that just about anyone can improve upon. But it takes work. There are no easy roads. Shortcuts only serve to cut yourself short in the end.