>>ry8806+(OP)
Other than the volume, one of the issues I have with these types of ads is that you're rarely able to report them as scams. Reddit have a similar issue. You can report an ad, but you have to pick "Other", there's no: "This ad is clearly a scam". That's by design obviously, because by removing the scams, most of the ad networks are left with very little inventory. Certainly not enough to fund all the ad supported service currently in operation through out the web.
When I forget to sign in to YouTube, I see the same pattern, shitty ads that are clearly only allowed because otherwise YouTube wouldn't have sufficient ad inventory to meet their internal KPIs.