PrivacyEndGame Considering the wide variety of threat models that GrapeheneOS users use GrapheneOS for, it would really be in GrapheneOS's interest to re-evaluate their stance especially if it is indeed a widely requested feature as not doing it does more harm then having it.
Obviously if some users want Feature X and the GrapheneOS developers add Feature X to GrapheneOS then that is in the interest of those users. But there are at least three other groups to consider.
If some users would be harmed by GrapheneOS shipping Feature X, suddenly it's not so clear that shipping Feature X is in the interest of the project. In the case of stealth profiles or partial duress PINs, it has been explained repeatedly that some users plausibly would be harmed. If GrapheneOS is known to have stealth profiles / partial duress PINs, then some people will have grounds to assume/declare that some user (e.g., some user in custody) has plausibly turned that feature on and used it. No matter how many users are sure that they would personally decide to use the feature and would enable it, that just does not address the interests of the users who would plausibly be harmed by the feature.
At least for the foreseeable future, if the GrapheneOS developers spend time on Feature X, they are not spending that time on Feature Y. This is undeniable. If Feature Y is more beneficial to more people, then developing Feature X instead of Feature Y is not clearly in the interest of the project.
Meanwhile, I think the GrapheneOS developers are entitled to an opinion about whether a feature is or isn't something they wish to invest in.
One way to resolve this would be for the users who really really really want this feature to hire somebody to write code implementing that feature, and to deploy that code in their own fork of GrapheneOS. If there are a lot of users who want this, and they do very much want this, then that should work out.
This suggestion has been made. I assure you that the GrapheneOS developers are aware that some users want this (and that some users want it a lot). Also the GrapheneOS developers have said that they do not plan to do this, and they have said why. That disagreement may be irreconcilable, in which case the open-source way to handle that disagreement is a fork.