Even with all these systems and people working to stop bad ads, there still can be times when an ad slips through that we don’t want. There are many malicious players who are very persistent—they seek to abuse Google’s advertising system in order to take advantage of our users. When we shut down a thousand accounts, they create two thousand more using different patterns. It’s a never-ending game of cat and mouse.

This summarizes up how worse those bad and abusive people are on the Internet, even Google confirmed it and has to deal with them with much efforts in order to keep them away. I recommend that you read the post, just to know how serious the situation is and what steps Google are taking to fight against scammers, though I don't feel Google is the one winning, but it's trying.

I read it because I need to read something, I am forcing myself to read everyday. Not I was interested in this topic, but I was glad that I read it with patience. Google has a system which involves three different aspects to decide and co-judge whether a subject is bad or good, do they (machine or human) need to take further steps or just block, and so on.

You will find that human truly is the last defense in all three aspects, they make the final call when machine can't tell. Like other modern system, decision isn't made by fixed rules, they can evolve and learn from mistakes (errors, which human points out), still, human is the most crucial component.

If I recall correctly, I only reported once on a Google ads. That ads tricked me to click on a text saying "Close," and I did click on it. It was instinctive reaction when that ads kept flashing strong colors like between red and yellow. It was so annoying, although I rarely saw such kind of trash ads via Google's advertisement system, but I did that time.

Out of natural instinct, I clicked on that "Close," however that would never got you to close that ads. Instead, I was brought to the ads' website. I was fooled, clearly.

That was only time I saw a bad ads via Google, I think Google does a good job on protecting their profitable advertisement system. There might be more, only I hardly pay much attention to ads, and my eyes and brain are well-trained ad-filter, but some slip through. I care more about email spam since it's main source I would see a spam or phishing email.

I would believe that Google has actually brought those scammers to court, they had done so to spammers. They have all information of all advertisers, so there should have no problem to file a lawsuit against a scammer. Name, address, phone number, credit card, everything they need is already in Google's database. Some could be fake, but it can't be all. Identity thief, come on, this is not a drama.

Anyways, I am looking forward to more posts like this.