The responsibilities attached to BDSM are frankly the same as that for any other sex act. But since the submissive partner(s) are placing themselves at a position of vulnerability, these responsibilities mark the difference between sex and abuse. Have fun, but responsibly.
This question of appropriateness is, for me, at the heart of all questions around sexuality. Each of us carries within us our own private benchmarks for which expressions of sexuality we find appropriate, and which ones, in turn, have crossed an invisible line. The ones we believe belong across the border, in the land of the inappropriate, of the too much.
Because the Internet is an integral part of our daily lives, it is important that young people are given the right information so that they can explore the world around them, access information without violating legislations, know their rights in the virtual and physical world and have enjoyable and consensual relationships with whoever they choose.