When it comes to adjusting posting habits to signature campaign rules, half of signature campaign participants are guilty of that, especially when it comes to writing in gambling discussion board which is a mess due that.
That's why I said it. To exclude that board when calculating the percentages of posts from each board of each user. Not sure if it's the only thing that affects it, though.
Even if it did, it's still not a solid proof. Let's just and see what GeorgeJohn or KingsDen has to say about this.