I’m not sure your premise is correct. This is important here. You start off by saying: it costs nothing to keep this site up. No downside. But there may be so

I’m not sure your premise is correct. This is important here. You start off by saying: it costs nothing to keep this site up. No downside. But there may be some downside from an SEO perspective, which the minuscule ad revenue would not offset. Even brands with good SEO, with pages which are making money, take some of them down occasionally. They idea is that you want to refocus all your SEO on the pages that matter most - which means pulling others. Here, you may want all the SEO “juice” to go to your videos, to push the maximum number of users there. If some of them are getting diverted to the website, and that pays less per click, you may in fact be losing money on it vs. having no website.