The height of MM in the comics isn't explicitly stated. Sometimes, such details are left to the imagination of the readers or might be revealed in later issues.
Maybe it's because they enjoy exploring different kinds of relationships and emotions. They might find the dynamics in mm novels fascinating and want to tell those stories.
Yes, there are many. For example, some gay interracial couples have overcome cultural differences and family opposition to be together. They share their stories on social media or in some LGBT+ community events, showing that love can transcend race and gender norms.
Dark mm novels often have complex female characters. They might be dealing with trauma, inner demons, or difficult relationships. For example, in 'We Were Liars', the female protagonist has to face the consequences of her family's secrets and her own actions.
I'm not sure specifically what the '35mm game story' is about as there could be many things with that name. It might be related to a game that has some sort of connection to 35mm film, perhaps in terms of its aesthetics or some in - game mechanic inspired by it.
One '9mm horror story' could be about a haunted gun. Maybe a 9mm pistol that was used in a tragic murder long ago and now seems to have a malevolent presence. People who come near it start to feel a sense of dread and unease, as if the spirit of the victim or the killer is still attached to it.