It seems pretty obvious that you were downvoted primarily for the entire entirely unnecessary "5 year olds copy-pasting from stack overflow" bit. "Actually, this isn't true anymore, a few years ago [afaik OPAQUE is from only 2018?) they found a protocol that solves this:" would've been a much more productive start to that comment.
Somehow I thought OPAQUE had some important change that made it practical compared to previous variants, but now I can't find what that would be or why I thought that, so yeah, the reference to the date is indeed irrelevant I think.