It's funny that you bring this up, because that's exactly what Delimitdesign is trying to do now that they have caught wind of my post (I'm the author).
They modified the post slightly to make it look less like a copy/paste job and modified the posting date back about 10 months so that it would appear to have been put up before mine. Too bad I was able to get screenshots of Google cache showing the post before it was altered. :-) If not for that, I'm not entirely sure how I would fight it. Maybe base it off of timestamps on sites like hacker news? Even then it's not a perfect solution since they could argue they simply didn't post a link to their article on the site until later.
They modified the post slightly to make it look less like a copy/paste job and modified the posting date back about 10 months so that it would appear to have been put up before mine. Too bad I was able to get screenshots of Google cache showing the post before it was altered. :-) If not for that, I'm not entirely sure how I would fight it. Maybe base it off of timestamps on sites like hacker news? Even then it's not a perfect solution since they could argue they simply didn't post a link to their article on the site until later.