I really just have a question this time. I have seen that when I make a comment on another wordpress blog, the first time I make the comment it will be moderated by the owner. If the owner accepts my comment, my next comment will be automatically submitted to the blog without any moderation. I am not sure if it´s like this on all wordpress blogs or not, but I know that I have it like this and many other of the blogs that I have been commenting on lately.
So what if spammers starts doing this, the first comment will be a real comment that you will accept. But the next time the start attacking you with spam instead. This is a method to get past the moderators and directly onto the blogs. I know that we will probably notice the spam and then ban the ip and the comments and so on.
But for myself and probably a lot of other bloggers as well, it might take hours or even a day or two before I actually discover the spam. If it takes a long time, the spam will be on the blog for the whole world to see. Even though it will get deleted after a wile, the spammers might get enough clicks to make it worth their time.
… just a thought