Re: Good riddance!
It's about time people stopped pre-emptively taking offence on behalf of other people. If I refer to someone as "he" and that person replies with "I prefer to be referred to as she" then I should apologise and remember that for the future. It should only be considered offensive if I continue to use "he", or if I deliberately used it knowing I would cause offence.
I use a contraction of my first name which is now generally considered to refer to a man, but in the past was often used by women. If someone gets my sex wrong because of that, why should I be offended by what is clearly a genuine mistake?