I couldn't find those references, unfortunately. It doesn't make sense after all anyway, why should Murena people harass Graphene people, or the other way round. But I would really like to see it, if it's there.

I have another assumption, as I have seen these allegations in former open source projects, almost in the same fashion: there are people in these communities (both Murena and GrapheneOS) that get paid to stir up feelings of hatred, in order to destroy these two great open source projects.

Both challenge the status quo by providing a better control of privacy and security. Both could do better, in my opinion (e.g. the case of Daniel Micay's behavior), but it would be a great loss if either of them disbanded. And there are some very capital-rich competitors who want them to be gone...