Say what you will about the tone-deaf Tumblr parodies but the implementation of hashtags in the dialogue was 100% nailed. It's so fun to see random potentially-not-even-there asides, especially when they deliver bonus punchlines. There's a reason I stole it for Befriendus.

I'm not saying it was the INSPIRATION or anything but the closest thing I've seen to it since is in Deltarune where sometimes you'll get a character adding on an aside in smaller text. It's Joke Efficiency. It's elegant.