@blogdiva @MastodonEngineering Thank you so much for the concept of the "pluralinguistic"! That's going to be very useful.
Because I've experienced what you're talking about: a system that detects when I'm writing English vs. writing (poorly in my case) in French. It drove me up the wall that either the English or the French were always both underlined in red *and* that the spellcheck didn't apply (ie, it would be great if it added accent marks for me).
We need pluralinguistic applications.