Clicky has a problem with "advertising"

Starting on July 3, I started to receive a few visitors attributed to the "Advertising" traffic source. Now that has grown to over 14,000 visitors per day.

Before posting this question, I searched the forum and see lots of other people questioning the advertising traffic source.

I do zero advertising. None.

So, I can't understand how clicky can attribute 14,000 visitors per day to this traffic source.

Something is wrong with clicky.