First emoji I have seen on HN. I thought it was not possible to use.

4ggr0 · on April 11, 2023

That's probably because it's an ASCII symbol[0] ♥

Emojis are Unicode, not ASCII (I think, not an expert myself).

We should also be able to use arrows ⇒, the trademark symbol ™, whatever this is ∴, or maybe this ℜ.

But we can test it, maybe HN supports Unicode Emojis but nobody is using them...

EDIT: I was listing some Unicode Emojis here, but you were correct, they were removed after posting. At least the ASCII symbols show up :)