Just as the title says: Have you ever clicked on an ad, knowing it was an ad, on purpose? What ad was it? Why did you click it?
Curious because I realized I have not once in my life clicked on an ad shown online on purpose. Accidentally, and being tricked into clicking the wrong thing sure; never with intent though.
If you're talking about ads that look like ads, it's happened maybe twice since the mid 90s. But who knows how many ads disguised as content that any of us has ever clicked on?