[chrismorgan]

I typed them with my Compose key, which I bind to the key to the right of Space, typically RAlt: Compose ( 1 ) ⇒ ① (this is part of the default mappings in /usr/share/X11/locale/en_US.UTF-8/Compose).

I recommend investing in a good Compose key setup. When I was on Windows, I used WinCompose. On Linux, you just need to bind the key and it’ll work. macOS, no idea.

HN does block emoji, for better or for worse, but almost everything else is allowed. The thing that frustrates me most about HN’s Unicode restrictions are its normalisation of diverse spaces to U+0020 SPACE; if I typed THIN SPACE or NARROW NO-BREAK SPACE or NO BREAK SPACE or whatever (and I do) that’s what I wanted; and mangling U+200B ZERO WIDTH SPACE and U+200C ZERO WIDTH NON-JOINER is just bad, and has prevented me from accurately representing Telugu text before—Indic scripts use the latter.