I submitted something on Reddit yesterday, and got about 170 users in about 3 hours clicking on the link.
I was watching the logs, and noticed that of those 170 users, about 6 of them clicked on a google ad.
It's been about 12 hours since, and google still shows that ad unit as having zero clicks, but does show impressions.
is a delay like this normal? Did google just decide not to give me credit for this, due to reddit? I can't imagine why....