I hope no one confuses what I've said in this thread as trying to dictate how other people should interpret RA. I do not hold RA as something precious and honestly it would be difficult to care less if I am properly fitting into the RA mindset. I adopted RA because of my worldview, not the other way around. If my views stray far enough that it is no longer logical for me to couple my views with RA... I'm going to take it out of my sig and not give it a second thought.
I try not to take offense to disagreement, it is one great way to shine light on worldviews and social stances. If everyone agrees with me then I have to presume I need to double check that I am actually being genuine.
It would be chucking out the baby with the bathwater to firebrand compromise as unethical - there are loving, ethical relationships in which compromise is essential to make them work, and a ban of compromise would lead to a "you must break up, stat" rule imposition. By definition, imposing such a general rule on another couple's (triad's, quad's etc.) relationship is the exact opposite of Relationship Anarchy.
I don't find it necessary to qualify my views as "ethical". I find that the need to rationalize one voluntary relationship approach as more or less "ethical" than the other is purely academic and one should only take on such an endeavor if they have a strong desire to wax philosophical or they are (for some reason) actually concerned that what they are doing is unethical.
I don't find compromise agreements, exclusivity agreements, or other sacrifice based agreements as unethical. Within the context of this conversation I don't find them to be in line with RA, and I personally find them to be counterproductive to flourishing.
I don't care what other people do in their relationship unless it somehow affects or is likely to affect me. If I'm dating someone who takes part in sacrifice agreements I am most likely going to keep an eye on that and make adjustments if it looks like I need to, but I have no interest in imposing my views on others. "You must break up stat" is something that I hope never makes its way out of my mouth... I can't imagine why it would.
I see a massive difference between compromise and sacrifice - to count as compromise, the agreement must be one that has been entered with free, informed consent, and is one all participants can live with in peace and without any stress/pain they consider impeding their quality of life.
I don't see a massive difference between compromise and sacrifice agreements, in fact I believe a compromise to be a sacrifice agreement on a fundamental level.
We certainly don't have to agree on that, but for the sake of clarity I'll explain my viewpoint:
What you have described "without any stress/pain they consider impending their quality of life" might be considered a compromise by the definition of the word, but within the context of the conversation I would find it to be an irrelevancy.
I like restaurant A but my partner who I'm on a date with tonight really has their heart set on restaurant B. However, it's not a big deal, I also like restaurant B, so I agree to go there instead.
This technically falls under the heading of 'compromise' but, it's irrelevant because either outcome is (while not perfectly identical) essentially the same. Giving up something that I don't care about is irrelevant.
On the other hand, even this minor inconvenience described above is something that happens frequently, should be worked around instead of needing to compromise on. If I want to go to restaurant A then I should go there with someone who wants to go to restaurant A (or go by myself if I so choose). Perhaps going out to dinner isn't what we should focus on when we see each other because we don't see eye to eye... what do we see eye to eye on? Let's do that!
I see no ethical problem in it whatsoever, and to be honest, individual negotiation that reaches such a compromise is RA in action. Obviously, such negotiations cannot be successful in all cases - sometimes, people really are incompatible to the point that no healthy relationship agreement can be reached between them, which means to me they have the ethical duty to just not be partners. And that's okay, too
I try to think of relationship arrangements as being a dial instead of a switch. Sometimes, as you said, it just needs to be ended and it's in everyones best interest, however sometimes the relationship needs to be adjusted in such a way that removes the necessity for compromise. If I need to give up something that is actually important to me (and not some inconsequential thing) then I need to look at what it is about this association that is forcing this requirement. Is it cohabitation? Is it the amount of time we're spending with each other? Is it (and much more likely) our expectations of how we 'should' relate to each other instead of a more voluntary and authentic association?
In my opinion, finding a balance where compromise isn't necessary should have a higher priority than respecting compromise as some fundamental part of all relationships to be proud of. It is a fundamental part of relationships only if they are trying to force a square peg into a round hole. I say, quit forcing it and go find the right shaped peg/hole for that particular desire.