I'm still stuck on the first case you're referencing (bc I hadn't seen that yet and woe, interesting!!!)

As for the pseudonym stuff--as you may remember I've had that issue before, so I'm really sensitive for people collapsing that boundary. Otoh, I feel it's a community convention that is meant to protect the community and its members, so I do think that B or C might be the best way to go about it. We've had some really horrible RL precedents in fandom where I think it's the community protecting its own (present and future) member.