  == Multiple changes at once ==  Dear Mr./Ms. Smith, Making a dozen or more changes at once in this controversial article is not acceptable. Each change will stand or fall on its own merits or demerits and must be substantiated if it goes beyond grammar and syntax. It is easy to revert multiple changes, and I will do so as opportunity arises. However, if one or two changes are made at a time, with references that can be checked, then you are certainly on safer ground.   