After a little investigating, I discovered a possible answer: Maybe he had blacklisted the blog because of suspected duplicate content. Take this post, "Genealogy Software: Tips on Finding the Right One," posted November 30, 2008. The advice is pretty generic, which may have made him suspect that it came from an article mill. Googling the first sentence brings up 170 results. Here it is posted on a different blog a year earlier.
This must be a fluke, right? Well, how about this post, "Ancestry.com: The Best Website to Learn About Your Genealogy," published October 30, 2008. 307 Google results. This post appears to have come from here, and this post from here. But given the lack of proper attribution, it's impossible to tell who wrote what when.
The proprietor of Genealogy and Family History seems to have cleaned up his act a bit in the past month or so. But maybe not. He wrote this just four days ago:
I recalled that I had written an article last year about Genealogists using Twitter as a means of connecting with others who were researching their Family History. So as it’s obviously a topic of interest to folks I searched the blog and here’s a link to the article which originally appeared back in October 2008:The linked article is remarkably similar to a tutorial at eHow.com, submitted by a user named Moomettesgram a month earlier.
Genealogists and Twitter
Taking articles from article mills is one thing. It gives bloggers who have difficulty coming up with their own ideas a chance to give their blog a little verisimilitude, without really violating some ethical codes, as the articles are there to be taken. You're lying to your readers when you claim you wrote them, but the creators of the property don't care.
As the author referenced comments on this thread, both he and the author of the eHow article may have retrieved the article from the same source - an article mill offering 'private label rights'. So he would only be guilty of 'creative sloppiness', which as I never argued otherwise, is legal. His new post explaining how he doesn't write all his articles is here. "Private Label Rights" do grant you the right to use 'ghostwritten' material, but it is still more honest to your readership to make it clear that you do, which at least he now does.
The Small Print: Proper attribution: Genealogists in Glass Houses.