Omegaverse Anon

The Omegaverse Anon, aka Cal, is the anon who put(s) questions out that includes the word Omegaverse.
Omegaverse is a type of erotic fiction in which two characters from a pairing exhibit animal-like sexual heat and engage in sex together. It is a commonplace enough kink and prompt that it has spawned its own "verse", which is what anon refers to.
In the past, they had gotten married to the Jotaro roleplayer, a former anon on the site.