I think @tiangolo likes to write like that, because there are other places in the FastAPI doc where he writes a "little story" (for instance to illustrate concurrency) and overuses emoji. I think it's just his style ¯\_(ツ)_/¯

Adults have been using emoticons in casual online conversation for decades. Certainly for most of your lifetime.

But do they put one at the end of every sentence like it was punctuation?

Sometimes :)

I remember viruses where spread easily through emoji packs for msn and other messengers back in the day.

They've gone full ancient Egyptian

Language changes, and so does written language. I used to use many ASCII smileys, those are pretty rare now.

I found myself stopping after each line trying to understand the inscrutable images. A tie I get, as it's related to business. The nervous laughing face and recycling symbol are beyond me.

The third line’s emoji is conciliatory false embarrassment masking amusement, e.g. the emotion on your face after you intentionally lose in arm-wrestling to a five-year-old.

That’s a pretty standard meaning for that emoji, despite the subtle shade of its meaning, because it’s quite common on Twitter or Instagram that you want to humble-brag about “what they missed out on”, but you also want to make it explicit that you realize that you’re doing so (a bit like sarcasm-flagging.)

The fourth line’s emoji is presumably a substitute for a “refresh” (or more precisely, “recompute”) icon, since we don’t actually have one of those.

...which is rather uncommon usage; but the proper emotion (“knowing but non-judgemental stare, as if a parent waiting for their child to figure out that they’re supposed to close the fridge after taking something from it”) isn’t a standard Unicode emoji... yet. (But nearly every Discord group I’m in has a custom one for that purpose!)

Thank you for the explanation. That seems very complicated.

They are annoying because they are facebook emojis and everyone is using them so you are linking them to contexts as you used Facebook. ie: the smile emoji is the most hated because it's kinda related to a fake smile/malice.

tip: stop using facebook.

I'm born in the 90s and reading that tweet made me want to puke