I believe the label mansplanting is used by non males to describe men teaching something in detail (often the complex idea is over the head of the person making the label comment). For some they would not like to be educated by males and men explaining technical details that no one asked for qualifies. Many males have stopped educating for fear of that label as most thought they were doing a favo(u)r by sharing. Society as a whole is affected.
It’s most often used when an idea is far _under_ the explainee’s head to the point that any explanation is absurdly unnecessary. That is, mansplaining usually refers to explaining while incorrectly assuming the incompetence of women.