Ads back then were pretty unobjectionable because they were like, a GIF or JPG on a page. It wasn't even until like 1998-1999 or something where they really started being JavaScript-driven from ad delivery shit like DoubleClick and so on. Suddenly I'm reminded of one of the early perpetrators of pop-up ads, X10 Technology[0] which was egregious enough to result in an early internet music artist, Kompressor, releasing a song about it, "We Must Destroy X-10"[1]
I still refuse to even consider an X10 product to this day because of those ads.