Why political ads?

[Umbran]

At the moment I have an ad for Sentinels of Freedom and... LED safety collars for dogs. But I don't have a dog.

 

[Eltab]

Off EnWorld, my spam filter has been collecting "Your subscription to -company- expires today! Renew now! " For the last seven days. And I don't even have a subscription to that company's services.

 

[Eltab]

Also off-EnWorld, but more relevant:

I was reading on a news site and got a fill-the-screen ad for "Ultimate D&D Gaming Table" in their mix.