You don’t police the English language. I don’t know what else to tell you.
One phrase can refer to multiple things; “free speech” often refers to the ability to say whatever you like* without repurcussions from an authoritative figure, be that the government, Elon Musk’s cronies, or Lemmy moderators. Obviously it is not a constitutionally protected right in the latter contexts, but then again the phrase wasn’t “right to free speech.”
I don’t passively use it anymore, but I’ll use it as a reference for past posts.
“How to determine undertone lemmy” doesn’t really work like “… reddit”