As we already know, buying traffic is not against the adsense ToS. Would it be against the ToS if I had a blog and the front page displays a single blog with a single ad block, and I were to buy traffic to my domain, and I were to do the following: Step 1: I will have my front page show a random post. Step 2: I make separate Adsense channels to keep track of earnings on each blog post. Step 3: I buy traffic to my site. Step 4: I make observations to see which blog post is making the most $ Step 5: I set that specific blog post as the main page. Is this method against the ToS? Once it stops making me money, I will repeat the cycle.
Publishers using online advertising to drive traffic to pages showing Google ads must comply with the spirit of Google's Landing Page Quality Guidelines. For instance, if you advertise for sites participating in the AdSense program, the advertising should not be deceptive to users.