I was just wandering how important that is for casual conversation. Because here we have "ć,č,đ,š,ž" but using "c,c,dj,s,z" will do just fine. Sure, it's not OK for something official but for anything else.......In the early days of internet half of the stuff didn't even support our characters. That's the reason why most of us oldtimers are used to type that way even now.
Not to mention that in SMS days any of those characters would take up to 10 letters of you message. Another reason why we were avoiding them.