[varelaz]

Off course traps is not the only technique. What's also checked: do you use datacenter IP or not, which country/location, does your browser footprint looks like what you send by headers and user agent, some may even validate if you move mouse like a human (check how recaptca works). And also take into account that adtech companies have a lot of statistics to analyze, so single click will not be detected, but thousands likely will be.

[ilikehurdles]

This is effective. After all that is said and done. Ad marketplaces stop bidding on your pageview (at least, the quality ones do). Over time fewer networks want your impression and the publisher ends up seeing a worse RoI on ads.