This effect is accelerating. After a certain point, everyone will have so much dirt to dig up that a few out-of-context comments from years past won't prejudice anyone much at all. In fact, the absence of dirt might become a little suspicious.
Right. And just look at Trump. He adamantly denied Obama's U.S. citizenship, joked about grabbing women by the genitals, made fun of a war vet for being captured, mocked a disabled person, etc. His wife has nude pictures. They're president and first lady. People are fed up with political correctness, and the bubble is starting to burst.