Hhaha, went through your post and trust me I feel you. The steemit editor as you mentioned really IS NOT equipped for urdu language. My comment above in urdu, it took me a good 10-15 minutes to write it. The issue that I faced? If, for example I have to use an English word in between the Urdu words, the format changed. The sequence of my words changed and I got a headache trying to include the word 'Steemit' in my paragraph. So I had to change it. Let me give you an example of what I mean:

' یہ ضروری توه نہیں کے ہم انگریزی میں ہی بات کریں، میں نے دیکھا ہے steemit پر بہت سارے لوگ اپنی مادری زبان میں ہی بات کرتے ہیں توہ ہم کیوں نہیں؟'

Now see, writing the word steemit in english ruined the entire format of the text.

Also, I know it's difficult to type in urdu on this keyboard, one easy way of doing it is to write in roman urdu and the software would automatically change it in urdu text. This is what I usually do.