[FalconSensei]

I think it wouldn't be about the ads, but the visit tracking. Like, block GA from seeing your visits on trash sites, but allow when it's a high quality post/content/source, so we skew the numbers for high quality content

[skinkestek]

That's actually very interesting.

Is there any extension that blocks analytics selectively?

[FalconSensei]

AFAIK, no. You would need to manually add exceptions by domain