Relationships even vary for the same spanko. I always thought I would be in a DD marriage, but my husband and I have been together for over 15 years and real discipline has never been part of it. I never wanted sex mixed in or any erotic spanking before I met him.
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There are some generally-accepted rules in spanking and BDSM, though - even if they are not practiced universally. Most spankos preach "Safe, Sane, and Consensual." Most spankos support age play, but not engagement with or discussion of actual minor children (other than personal reflections). Many spankos value consent - even if it is CNC. When I first joined the online scene, folks preached two established ideas for safety: (1) use safewords and (2) don't drink alcohol when playing. I didn't follow either one, but it didn't bother me if others did.
I do think spanking should be consensual. I was a minor when I was spanked for the first time - consensually by my boyfriend at my request. So minors playing together is fine, but for the purposes of this website, all members are supposed to be adults. So...adult consensual spanking is really the one-true way.
I definitely have my preferences, but sharing those preferences doesn't mean I think others need to live their spankoness the same way. Almost every woman who has been in chat has gotten messages from guys who express the one-true-way to do spanking. Always bare bottom! Always with a hairbrush! "I would never spank over jeans!" Only F/M should be allowed!
I will always be outspoken about non-consensual spanking and abuse. And I am always going to report SN members who repeatedly try to talk to me about children in their care. And yes, I will probably always advocate for SSC - even if I have never personally had a safeword or will play with others on a first meeting.