Yesterday, Steam's official account directly told a popular gaming YouTuber named Dodger about an anime theme sale on Twitter. Also it seems Dodger didn't ask Steam. Here's the tweet.
Surprisingly, Steam usually wouldn't announce a sale ahead of time or directly talk to a person. The anime games sale will be starting today at 10am Pacific Standard time.
Steam Sale: http://store.steampowered.com/sale/anime_sale