I guess I can give my input on the questions I posed here.
As a slave the ideal would be for no limits, no safeword usage, and giving up total control and surrendering yourself completely to your Master in your submission.
I have given Him my passwords to my email and website accounts. Oddly enough, that was one of the hardest things He's ever had me do. Harder than even the physical tasks or play that W/we do. I guess that is because that strikes right at the heart of mental submission. He assures me He will never use them and after some thought I told Him I would rather He use them if He ever feels the need to instead of harboring even a smidgen of distrust.
W/we have talked about once I'm permanently collared will I give up my limits. I have decided I won't take His collar unless I trust He will not ask or order me to do things He knows I have never found acceptable in the past. After all, how disappointing would it be if He slaps on the collar and 2 minutes later decides He wants to take a dump in my mouth. That would be the end of that for me. But that is where the trust and respect comes into play. He doesn't want to hurt me or make me unhappy. What would be the point in that.
Safewords I am torn about. I don't think they should ever be used during punishment. I do think where there are instances where they should be used. The slave starts to feel physically ill or notices something has gone wrong that the Master hasn't seen. Masters are human too and I would think they would be more displeased if a slave let something continue that was hurting their property instead of pausing for a moment to address a serious issue.
As for sexual orientation, I am exploring that. I do think that if a slave is absolutely horrified or sickened by the thought of homosexuality that it should not be forced upon them. That would be akin to rape in my mind. Again that boils down to trust and being with the right Master/Mistress in the first place.
I hate hard limits. I wish I had none but I do have a few. I am still evolving and growing as a slave. I gave up a hard limit for Him. I agreed to try what He wants. I do that for Him. I've also been looking at another hard limit I have and decided that it isn't a hard limit after all. It would be something I'm willing to try. He isn't that interested in it but said W/we may try it in the future. W/we are both keeping open minds about these things and growing together in O/our relationship.
My Master is the most important and influential person in my life. I am His most valued property. With communication, trust and respect I suspect all these questions and more get worked out on their own with time.