I sent a get request. If you put something in your database that's on you. Could we all be less eager to be the devil's advocate? "Chug your mandatory mountain dew in order to continue"

Yes but technically you are not making an entry in someone's database; you merely send a request and it is not your problem that the remote computer misinterpreted this as displaying an interest in an ad. Remote server doesn't use any password, SMS confirmation or similar measure to restrict the users that are authorized to send requests so sending it sould be 100% legal.

But as a proverb says, "the law is like a drawbar, you can bend it as you like".

If I purposefully click an ad even though I know I have no intention to purchase anything also unlawful?

Following that logic I should never click any links on the internet, since I would be potentially logging as activity on someone else's computer

who allowed them to make entries in MY computer in the first place?

> But when I click your link in backround thats not ok.

Why not?

If you don't want bots clicking on your link you should put a captcha on it. If your link is publicly accessible, my background click is authorized by consequence.