I have worked with Adsense for several years, my earnings slowly but steadily rising due to hard work and patience.
Most of my traffic has been organic so far. Last month, I started an Adwords campaign for 1 of my new websites, to test the water.
This is not a discussion about Adwords being allowed or not, because it is, explained here: https://support.google.com/adsense/answer/1348722?hl=en
It says the publisher is responsible for his traffic sources and mentions Google Adwords explicitly as an option, so I don't think Adwords is a source of 'suspicious' traffic and should be in the clear.
Now, what happened: a few days ago, traffic on my Adwords campaign exploded, due to the topic being covered in the news. I increased my budget immediately to profit from all of that traffic, and for a few days, the daily revenue in my account was about 4x the average daily amount from the previous months. Needless to say, I was very happy.
THEN, all of a sudden... my earnings stopped. Every time I refreshed, I could see that the earnings were not going up, but down! It seems that Google was removing clicks/earnings very soon after they came in. Of course I started to read online, and figured this must be because of Google counting them as invalid clicks.
I immediately stopped my Adwords campaign, because even though Google says purchasing traffic is allowed, I did not want to take any risks.
At the end of the day, not only were most of the Adsense clicks/earnings from my new website (the one receiving Adwords traffic) removed. A lot of clicks/earnings from my other websites, receiving organic traffic, had also been removed! Not everything, but really a lot!
Traffic stayed the same. Only CTR/RPM is down, and I can see it is from them being removed, not because they were never there.
Previously, I never had any clicks/earnings removed, or at least I never noticed it. But now, Google is removing a lot of clicks/earnings on ALL my sites (invalid?), and I am only earning about 70% of what I was previously earning, before Adwords traffic exploded for this 1 new site.
This has been going on for another few days now. It doesn't seem to recover by itself, even though the Adwords campaign stopped, or perhaps it's too early to tell. It seems Google has somehow flagged my account. Perhaps I reached some sort of earnings threshold, or it's just the sudden rise in earnings, I don't know.
I hope I'm not at risk at losing my account for invalid activity? Because that was obviously not my goal, nor do I think it was the case.
Does anyone have experience with this? Or comments/suggestions on my issue?