I am guessing you were meaning to say "motherfuckers" as opposed to modarfuckar. Also, I think you meant to say "mad", instead of "mand" at the end of your post.
Also, I have no need to know how to write or read proper Arabic. It is not mandatory for me as I live in Canada. The only languages I should be engaging in would be; My birth language, Serbian, English, and French if I wish.
English is a language you see people writing or reading across the world. That is why I recommend most people to learn it. Even if they do live in a foregin country, the person can find a better job much more easily if they know how to write and/or speak English.
Congratulation on 1000 posts.