I quite like this idea, and it's a shame that it might not be implemented due to the coding. There's an option to hide your gender on your profile though, so what if as an alternative there's a custom profile field for your preffered pronouns? I know there's been a couple new profile fields added after the forum update (primary rp group and species), so I think that might be possible, at least? I could be wrong however, that's just my two cents.