Before I broach this topic, I want to set forth my experiences in roleplaying. I've been roleplaying in various forms of tabletop, LARP, and online RP for about 30 years. I've been both player and GM, and I've been called upon to mediate and make some strange judgement calls over the years. But I have never seen a situation quite so presumptive as I have encountered recently.
Roleplaying is a social activity. People engage in it because it's a fun form of 'let's pretend' generally with a loose form of rules and mechanics attached to it. While there is risk and conflict involved in roleplaying characters in various scenarios, I've rarely seen anyone claim that roleplaying should be an endeavor where someone should be put into a situation where they are forced to be uncomfortable Out-Of-Character; or if so placed, that they do not have the right to excuse and remove themselves from the discomforting scene.
I've recently encountered situations involving roleplayers in AoC who weren't necessarily doing anything wrong in their RP, but in the unfolding of their scenes, events strayed beyond that which I was personally comfortable with. I quickly excused myself as politely as I could, and removed myself from the scene. I thought that would be it, only to be surprised by accusations of being a spoilsport by leaving, and that 'real roleplaying is opening up your horizons' and that a roleplayer should just 'sit, interact, and listen' even if they are uncomfortable with a given scene.
I want to set the record straight. Your fellow players are not living props so that you can self-aggrandize. Roleplaying is two-way, and the freedom to roleplay ends where someone else's boundaries begins. Likewise those other players don't have the right to tell you what you are doing is wrong or to lecture you on what you ought to be doing. Everyone's free to RP whatever they are comfortable with. But insisting that someone sit through something that takes them past their boundaries and comfort zones, is not roleplaying- it's grandstanding in the most self-centered manner possible.
I lead a social and roleplaying guild. I encourage my members to roleplay and to do their best to include others. But I also remind them that roleplaying is not about the ego. It's a group activity and being inclusive does not mean holding someone hostage to bad rp, tasteless rp, or even just rp that doesn't fit someone's preferences. If someone doesn't like what is going on, don't take it personally if they leave. If their tastes don't match yours, that's part of the variety of human experiences. Don't take someone to task for 'not being like you'.
Be polite, be kind, be inclusive, and for goodness's sake, don't take rejection of one scene as rejection of yourself as a person or any other possible interactions. It's not a binary experience after all.
But above all, have fun and remember others are out there to have fun as well.