"This Good News of the website will be declared in all the inhabited earth..."
The decline began with the publishing of "Reasoning From the Scriptures".
When I was a pioneer in the 80s we began to be encouraged not to provide answers from the bible in our own words but to take out the reasoning book and read the answer. I never went along with that. I took pride in being able to deal with any objection directly from the bible.
I suspect the motivation was uniformity.