I think they always had a ton of them, and they did generate money, but I remember a debate some years ago about I-dont-remeber-wich-game with "totally nsfw con

I think they always had a ton of them, and they did generate money, but I remember a debate some years ago about I-dont-remeber-wich-game with "totally nsfw content" and Valve explicitely said they were open to the genre (probably to contrast with epic game or a platform like that). So developpers published their game on here too.