Close, but 2000s had some very intrusive and malware ridden advertisements. Popups everywhere, aggressive banners, malware and random browser toolbars being installed to your system. Complete wild west of unrestrained advertising. Online ad blocking didn't start with Ublock Origin, the first tipping point was in the 90s and 2000s, where famously clean and effective search engine Google swooped in to "save us" with their Chrome browser blocking popups by default, and their own concept of 'ethical ads', which were mostly unobtrusive and text-based (what happened there?). Which was nice for a while before Google exploited the popularity that bought them to turn into an inescapable ad monster.