I've just disabled all ads (for all users) both from our ad server and from the ad provider (Ezoic). I've just cleared history and they're still showing up for my Admin account. For my Crew account, the ads have disappeared, but I'm not usually logged into that one so it didn't take much to clear out that ad content. I'm going to check back in a bit. I suspect the Ezoic servers take a bit to update.