I really hate all those CLI applications and terminal configurations that look like circus came to town.

I don't love emojis for this purely because they're graphically inconsistent; I can't style them with my terminal font or colour scheme. But I'm a huge fan of using various (single-width) unicode chars with colour to make terminal output a lot easier to parse, visually. Colour and iconography are extremely useful.

Hieroglyphics are vastly underused.

    𓂫 ~ 𓃝 JdeBP𓆈localhost 𓅔 %                                𓅭 pts/0

Love it, first time I see that online on forums (genuinely). Gives ideas for Reddit posts

U+130B9 is probably a good one to start with over there.

(Nsfw)

what isn't in the unicode standard these days???

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It's the same thing as naming your servers Titan and Cerberus, using garish RGB LEDs on every computer part (in a glass case of course), and having a keyboard that looks like a disco.