Blog Spamming

I've never heard of blog spamming until a few days ago when I noticed that I have to do a word verification in order to publish a post on my blog. At first I thought that blogspot just added another security feature (similar to the word verification to post comments) but when I thought about it more it just didn't make sense to me. So I clicked the question mark by "word verification" to see what its all about and this is what I saw:

*****
Your blog requires word verification
Blogger's spam-prevention robots have detected that your blog has characteristics of a spam blog. (What's a spam blog?) Since you're an actual person reading this, your blog is probably not a spam blog. Automated spam detection is inherently fuzzy, and we sincerely apologize for this false positive.

Before we can turn off mandatory word verification on your posts we'll need to have a human review your blog and verify that it is not a spam blog. Please fill out the form below to get a review.

*****

So I guess I'm glad that this is a false positive. And all I do was have to do another word verification and now I just wait for someone to review my blog and take this silly word verification off.

I wonder what made my blog come up as a potential blog spam? I have no porn on here, no ads....

odd.