Complex sentence: Editors themselves have sometimes voluntarily eliminated or altered the feature, as when the "Daily Mirror" stopped printing topless photographs in the 1980s, but the "Sun" has retained its Page Three feature for over four decades with only minor changes in style and presentation.
Split into simpler sentences: Editors themselves have sometimes voluntarily eliminated or altered the feature, as when the "Daily Mirror" stopped printing topless photographs in the 1980s. However, the "Sun" has retained its Page Three feature for over four decades, with only minor changes in style and presentation.