Lukewarm take: If a wiki community (or any other online community) is "professional," that makes me way less interested in spending my free time there.

I'm particularly going to critique the Gaming Wiki Network, whose criteria for joining state

Welcoming: Wikis should have a positive, welcoming, and well-managed community. Their conduct should be respectful and professional, including on wiki social media accounts. They should be well-moderated so as to not foster a harmful environment.(Emphasis mine)

I don't think a "professional" wiki is welcoming, especially to communities who have historically been excluded from "professional" settings.

#Wikiverse