Why was this blog labeled spam?

Last week, this blog was frozen for a day or two (that's why there were no posts on Friday). I also received an e-mail telling me that this space was designated as a potential "spam blog". I don't know what that is, but I guess it's bad. I replied to the e-mail, and on Saturday we were back in business. I had no idea why this was designated as such.

Then I read this article this morning:

Web loggers who are campaigning against Senator Obama's presidential run are accusing Google and Obama supporters of silencing them after their Web logs were marked as spam and their accounts temporarily frozen.

On Thursday, hours after publishing a post about an online petition demanding that Mr. Obama publicly produce his birth certificate, an associate professor of business administration at Brooklyn College, Mitchell Langbert, found that he could no longer access his Web log.

It goes on to describe the whole scenario. I'm not one to get into conspiracy stuff, and I doubt Google did this to go after anti-Obama blogs. I mean, sure, I don't like the guy, but it's not like I am pro-McCain. The simplest explanation is usually the correct one, I think:

A spokesman for Google, Adam Kovacevich, said in a statement that an overzealous antispam filter was responsible for the blocks.

"We believe this was caused by mass spam e-mails mentioning the 'Just Say No Deal' network of blogs, which in turn caused our system to classify the blog addresses mentioned in the e-mails as spam," he said. "We have restored posting rights to the affected blogs, and it is very important to us that Blogger remain a tool for political debate and free expression."

..."I don't think" Google has "malicious intentions at all, it's just that spammers can literally overrun a service if you're not careful, so their defenses have become overzealous," a spokesman for WordPress, Matthew Mullenweg, said in an e-mail.

"We always have human review before turning off an active blog," he said. "People invest so much time into their blogs, to treat it with anything less than the utmost respect is criminal."

I can understand the conspiracy-peddling from these guys since Google has shown a distinct left-leaning bias in the past. However, no one reads this except some people I know. Also, I am certain I have zero influence over anyone from anything I write here.