Non-English letters don't work in wall post replies, other writing systems don't work in PMs

[VGPolyglot]

JEMC said:

That's a known issue, as far as I'm aware. The first comment in a wall is fine, but the replies to that comment don't recognize those symbols/letters.

It does, indeed, suck.

Yeah, I'm just wondering if it's an easy problem to fix, or if it'd need a huge recoding of the website.