Part of my logic goes to a recent discussion we are having, now moved to QOTO's Discourse Forums site. https://discourse.qoto.org/t/nov-2019-site-issues-discussions-non-english-and-foreign-script-posts/102
QOTO is primarily English language, and posts in foreign languages strain the moderation team, who might not speak them.
I fully understand the Fun of practicing our native languages, or practicing a new one you are just learning, but an instance located in a country where the language is currently spoken will have a lot more content, and friendly users to chat to.
Like it shows, on this snapshot -- a Brazilian user defining Fediverse:
"It's a Twitter without Nazis, and apparently I would have a beer with everyone." 😉 🍻