About the pronouns matter, Hussie stated on Twitter in 2021 that "any (pronouns) are good".

In addition to that, there was a What Pumpkin communication using they/them for Hussie the same year.

It seems pretty clear that yeah, any pronouns are good.

Enbyphobes will tell you that it was Hussie "playing a role" for the promotion of Psycholonials. But it was never indicated anywhere, and there's no trace of joke in Hussie's answers on the matter.