In principle I'm fine with all of that. I suspect there's not much mainstream appeal for a YouTube that only recommends ISIS videos, so you're not pushing ISIS videos to someone who wasn't already looking for them. I suspect such a site would fall foul of law enforcement on other grounds (such a rule change wouldn't be allowing anything that wasn't allowed before). I don't see why the regulator would need to decide on the same limit for pull-based search results (I've told the site what I'm looking for) rather than push-based recommendations (the site is pushing something else alongside what I was looking for).