Google Loopholes

I heard about Submitting  blogs on google blogs listing. I tried doing it and  it asked me enter code, to confirm whether i am a human or not. Well in the first case i did not understand the written alphabets, so i submitted it so that it can throw some error and it will regenerate a new code to verify. But guess what,  it accepted it. Its such a big loop hole in google Blog submissions. It accepts without confirmation. This means there is no verification taken care by google while submitting blogs.