Morality and BDSM is both a complex and very simple subject to me.

Let me explain.

Safe, sane consentual - simple, Safe meaning all possible safeguards are in place and if specialist knowledge is needed it has been gained, plus safeword.

Sane and concentual apart for then obvious also including the ability to make an informed consent, judgement not being impared by excessive alcohol and sane meaning that my emotional status doesn't make play unpractical.

It gets complex because our morality is so interconnected with emotions, what we feel to be unacceptable and what we have been taught are 'normal'
Simple expressions like 'anal sex is only for gays, whores and prostitutes' (it's not true but if you have been taught it then you may well feel 'dirty' for enjoying it) see if you enjoy it what is the problem but moral standards are ingrained into us and so we tend to question our personal position based upon societys values, sometimes that is why it can be such a relief when we find places like this and have a different meter to value things by.

The key to me is to try to judge what you are doing in relation to your moral standards of your personal hard lines and beliefs and not let the othside force limits onto you that could do more harm that good.