I think it bears repeating that allowing people to show a preferred pronoun is a great way to keep everybody happy while keeping politics out of the conference. It allows both people who prefer a different pronoun than their name or appearance might suggest, plus the people who want to show their support, for an opportunity to communicate this. But also it lets people people who are offended by this or who simply do not care about the entire debate off the hook.

Do you mean "implicitly"? I can't find any mention of pronouns and Rule 5 only seems to propose allowing attendees to add personal interests to the badge.

The idea behind adding pronouns is both to help avoid awkward situations both for people unintentionally appearing rude out of ignorance and people having to point out how they'd like to be referred to.

I'll admit, I missed this in my speedier skim of the article. Apologies.