I saw a post recently which suggested that being a slave (in the d/s context) had a deeper meaning than being a sub. That as a sub, they had the choice to say no if they weren't in the mood to do something and as a slave, they couldn't. And it bothered me until I sat and thought, "that's just how they do it".
I think we all need the reminder sometimes, that how we live this lifestyle is entirely personal and different to how the next person will. And it only bothered me because being a sub is so important to me. As a sub, I would never think to myself that I could just say no if I wasn't in the mood to do something my dom had asked me to do. My version of 'sub' has just as deep a meaning as their version of 'slave'.
At the end of the day, these are all titles that we give ourselves. What they mean to one person is entirely different to the next. There is no one true set of rules to live this lifestyle, it's just what works for you and is safe, sane and consensual. You can have no rules, no punishments or a 10 page contract full of each. It really doesn't matter as long as everyone is happy and satisfied in the relationship. There needs to be more acceptance and less judgement about how people live their dynamic.
My one sticking point (and a slight tangent) is always going to be safewords. I see so many posts lately about how being a slave means giving up your safeword and it scares me. I truly believe that everyone should always reserve their right to have a safe way out of a situation. Sub, slave, dom, master, mistress, little..everyone should be able to feel safe enough to stop something when they need to. But again that's just my opinion. I just feel that it's important to point out to people, that 'slaves having no safeword' is not a rule, especially to those who may be new to the lifestyle. If you choose to live that way, so be it, but if somebody tells you factually, that's just how it's done, then don't accept that and run.