Russell wrote semi-anonymously because of Brethren influence. Brethren writers wrote using only initials to avoid self-praise. Christ's praise was what was important. So Russell published his books and tracts without author name. Rutherford abandoned this, and his name appears on almost everything he wrote, except Watch Tower articles which were published anonymously. Golden Age articles have his name. After Rutherford's death the Society returned to Russell's practice. The most recent Society statement on this is in the July 15, 2015, Watchtower. It presents the same reasoning. It avoids praise to humans.
To me this seems somewhat hypocritical. They praise the Governing Body endlessly in ways that seem to me to belong to Christ. Christ gives holy spirit, understanding, supports us in faith and prompts holy works. No ecclesiastical authority does this. BUT, organizations are entitled to their hierarchy. No-one else must accept it.
As an academic, I find this a bit puzzling. I take responsibility for the quality of my work by sticking my name on it. That's what responsible researchers do. By choosing to be anonymous, one avoids responsibility.