Myself being a coolbie in past I know how much effort we put into a single written update. Time and time again this issue has been raised.There is no perfect solution for this yet ,our technical team is hopefully working on it.
As for now the only solutions are :
1)Using members only and no copy feature as you have mentioned.
2)Updating in picture format with water marks.
3)Updating in audio format .
I shall forward this thread to technical team too.
Hope it helps.😳
-S/C Team