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Sorry to hijack your post, but I wasn't aware of emojis (flags only?) being available on HN.. there's no mention of them in the guidelines nor FAQ. What are the rules / guidelines on them? Are they (emojis in general) available in comments only or in titles of posts too?

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HN is a plain-text site so we basically don't allow those. Software strips some of them out sometimes, but it's not the sort of thing we'd go for a 100% technical solution to. I edited them out of the posts in this thread. Interestingly, I don't think the meaning of any of the comments was affected by doing so.

(We detached this subthread from https://news.ycombinator.com/item?id=20776138.)

Emojis are unicode characters like any other, you can use them almost anywhere. I don't believe there are any official rules/guidelines on using them on HN, but they are rare here.

Mine have been filtered out in the paste. They are Rare because they are programmatically filtered. No emoji in here ().

Someone managed to use them in a post below, I just copy-pasted them...

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