In an online social group that I occasionally participate in, someone posted a request to use a tool (PluralKit) that would allow that person to post using multiple identities, instead of just a single user name.
Curious as to why someone would want to do that, I inquired and the response was that the person is “a system and the different headmaktes are looking for slightly different things. … there is more than one person who occupies this brain. y’know how nonbinary is under the trans umbrella, most people know DID (dissociative identity disorder), I’m under that umbrealla or more, DID is under the 'plurality umbrella” i’m a variant of DID’"
So the idea is that a plural person, or “system” is a host for multiple “headmates” or “alters,” who each want to be treated a separate person, in this case, for the purposes of social interaction, including possible dating.
I was taken aback by this notion, but then I thought, well, if a person can be transgender, then why can’t someone be a plural person? In both cases, my thought is, well, maybe I personally wouldn’t want to be in a relationship with that kind of individual, but maybe there are those who are fine with it? And who am I to contradict what someone says about es identity? But I also have this voice inside me saying “this person is playacting.”
This concept leaves me with a lot of questions, like “what is a person”? (Just like with transgenderism, which leaves me thinking “I don’t know what gender is now.”) I don’t really know what to think, but, I guess, here’s a new thing.
Some resources I found online about this concept.
https://www.pluralpride.com/playbook
https://pluralityresource.org/plurality-information/
http://www.exunoplures.org/main/articles/rules/
Some individuals describe their experience of multiplicity as a form of neurodiversity, rather than something that demands a diagnosis.