I have a problem which I encounter only on Stack Exchange group sites (although it can be my phone's problem).
The problem is: I don't tap on the ad, but it still opens. I want to drag my finger to scroll down the page, but it is 100% impossible to scroll when I start a gesture on the ad. The moment I touch screen the ad opens. This means I cannot scroll and it doesn't matter where I leave my finger (totally outside of ad box), it still opens the ad (I would expect it to open only if I tap on it - press and release finger in range of ad box).
Video about this bug: