StingingVelvet: I have stuff like "online multiplayer" and "MMO" blocked on Steam and yet I still see both all the time. I guess this kind of thing is harder than it seems to pull off.
"online multiplayer" and "MMO" are user-assigned tags. Inoffensive products (
Crossworlds as an extreme hypothetical example, but also games which simply have online multiplayer, possibly even with private servers) can get tagged with them. So I can see how the cold start problem (one person wrongly tags a new game, target demo never sees it) would necessitate some leeway.
But they can't even filter by VR-only or languages, which are NOT user-generated. To really drive it home, they have these orange warning boxes immediately below the screenshot window, "warning: this game requires VR, which you don't have" / "warning: this game supports no languages you speak".
And yet the adult filter works. I wonder why. It can't be because that one not working will get Gabe sued, now can it?
The OP's scenario is harder, though. What even counts as "anime crud"? Streets of Rage? Disaster Report? River City Girls (US)? Celestian Tales (Indonesian)? The Coma (Korean)? Miss Teen Florida, as AAA as GOG can get outside of CD Projekt Red? We all "know it when we see it", but it doesn't work with computers.
(I'd still rather prefer not seeing any teen floridas.)