How am I supposed to know, before I click on a link, if the ads supporting the site I'm about to visit are "bad" or not? A possible solution would be to develo

How am I supposed to know, before I click on a link, if the ads supporting the site I'm about to visit are "bad" or not? A possible solution would be to develop an adblock product which whitelisted "good" ad networks by default (I think adblock plus has this feature for google ads at least). Getting that list populated and maintaining it would be tricky but feasible.