아랍어와 같은 오른쪽에서 왼쪽으로 쓰는 언어를 사용하는 포럼에 Discourse가 적합한가요?

If so, what config should I do after following Building a Discourse Community?

Update 1: I found one Persian forum using Discourse. It can’t handle English text though:

There’s a site setting for this: support mixed text direction I think if enabled it’s supposed to support this.

That setting is in Settings/Basic Setup/support mixed text direction. The box is unchecked by default, so you will have to check it.