Sisters are not used to write articles in the WT - often, they are used to "proof-read" or "check", but the Organisation's internal policy does not allow for sisters to write material that is considered to be theocratically instructive in any way. Sisters, as in the preaching work, are used internally to do the bulk of the work, such as researching and compiling, and certainly at the branches, there is an effort to ensure they are made to feel that their work is important.
As for the writing department, let us say that the attitude of that group is arrogant to say the least. I sadly had quite alot to do with them internally, working on thier material. When you are discussing how something should be translated into another language, you come across logic gaps and other things that show how weak the argument presented in the material is. This then has to be submitted to the writing department who need to oversee your amendments. their atitude, when you highlght erroneous interpretations of scripture, and credibility issues is something to see.