Thank you, Kaj. I really do appreciate your handling of this, if I haven't said that already; I know these things can be difficult.

I will just issue that user a warning as well as let MugaSofer know who was downvoting him. MugaSofer may choose to make that information public or keep it between the two of them, as he wishes.

I got your message, and I've received an apology and explanation from the person in question. I think I'll keep their identity quiet, although - in the interests of lessening wrongness - anyone who cares, if such a person exists, should PM me and we can talk about it.

(I think Eugine's downvotes are just that: a whole lot of downvotes. We've disagreed a few times, I'm not too surprised. Still, it's a shame to see him go.)