I don't know about scam ads, but I've been seeing badly targeted ones, for example a bunch for a lawyer who specialises in helping Americans who live in the UK to renounce their US citizenships.

I'm not an American, I don't live in the UK, and I'm working towards gaining a second citizenship rather than removing one.

Also for example, an ad from a government of a country I don't live in about them banning a breed of dog I've never heard of. I don't own any breed of dog, definitely now whatever that was.