[oauea]

Literally everywhere. HN just strips out emojis from posts, because they're obnoxious.

[thw0rted]

Unless, apparently, you're trying to post your sweet new email address. Honest question: if this takes off, do you think HN will stop stripping them?

[rendall]

No. Because

1) it won't take off 2) punycode 3) other reasons