It seems clear from your comments here that you still defend editing someone else's comment on a Talk page because the software let you.
This is wrong. If you disagree about transliteration, you should have added a comment of your own with the supporting documentation you mention, without removing the other user's transliteration from their comments.
The fact that the software did not automatically prevent this is irrelevant. My bank's software will let me spend money I don't have, and charge me overdraft fees after the fact; that doesn't mean I had the money to spend since the software let me. Here on HN, that seems to be worst possible justification or rationalization for behavior everyone else both there and here is telling you is not okay.