Grindr just released this thoughtful but concise white paper:
For Discourse itself - as opposed to individual Discourse communities - the main issue I can see from the whitepaper per-se is giving users the ability to specify pronouns.
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That might be worth implementing into the core version of Discourse.
It could also make for a great plugin. Feel free to suggest it in the marketplace with a reasonable budget. 
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You could just use a user field that displays in their profile.
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