It is "proper" to make these transpositions in English. Whether, in the age of Unicode, it _should_ be, is another question.
Caveat: "proper" in English is somewhat loose, as writers can and do "properly" break the "rules" of English.
As an English writer I have two problems of politeness to you. One is spelling your name properly. Another is conveying to my readers how to pronounce your name properly. If I use the likes of "Knausgård", my readers haven't got much idea how to pronounce that. If I extend those principles to, say, Bengali or Chinese names, they'll have no idea at all.
Unicode certainly opens new questions. But you won't get very far acting as if the answers are obvious.
Caveat: "proper" in English is somewhat loose, as writers can and do "properly" break the "rules" of English.
As an English writer I have two problems of politeness to you. One is spelling your name properly. Another is conveying to my readers how to pronounce your name properly. If I use the likes of "Knausgård", my readers haven't got much idea how to pronounce that. If I extend those principles to, say, Bengali or Chinese names, they'll have no idea at all.
Unicode certainly opens new questions. But you won't get very far acting as if the answers are obvious.