Wow, I’ve been lurking here for a few weeks and I must say, you are good. I can’t believe how awful the editor/writer is at Yahoo! Shine. How can you give any credibility to a site (or anything) that has that many errors (every day)? Just out of curiosity, do they know how much bad publicity they are getting? Keep up the good work; we need to get back to the basics of spelling and writing.
Some of the writers and editors at Shine drop in on Terribly Write from time to time and occasionally correct errors reported here. In general, they’re not happy with what they read and can be quite defensive about their writing. See the comments on the About Terribly Write page.
A spell-checker isn’t going to spot those homophonous errors, but it could pick up some of the other gaffes and goofs made on Yahoo!. It would be a start, but no substitute for some real editing — or at least proofreading.