Freedom of speech is the issue. If you start banning one subject, soon you will be banning another and another. Look at the reader's response and votes for these stproes. amd you will be convinced that they belong here and are appreciated by many. In fact, some of them have top ratings, and include many other subjects in the story. If you ban, authors will go elsewhere, and BDSM Library will be that much diminished.
"Give me liberty AND give me Death".