Fortunately, you do have options for what will and won't get around the human filter, when it comes to choosing your weird character.

For example, a human knows that in name "John[Emoji] Doe", the [emoji] isn't likely a legitimate part of John's first name (imagine, if HN permitted, the emoji was a dolphin), whereas, "Renée Doe" a recruiter might copy-and-paste for accuracy.