Thanks for linking. Her speech at the U.N. made some waves in social media, and mainstream folks have welcomed her rhetoric.
Feminists overall are somewhat divided in how useful her speech has been. Some feel "leaning in" (thank you Bell Hooks) offers language that privileged people can relate to and feel compassion for rights granted to women. Some feel relating the idea that patriarchy hurts men just as much is not useful, and opens a door suggesting that the current system ought to focus more attention on males then females. And then some others feel that the language in #HeforShe is transphobic and binarist, and reduces gender down to a simplistic gender binary, and marginalizes agendered, gender-queer, and bigendered people.
Jackson Katz has spoken to men many times about how male feminists are highly important allies, and can walk alongside females who are fighting and speaking out for equality and justice. Personally, I think Emma Watson is awesome for speaking to the U.N. and for accepting the position of spokesperson for such a campaign. I think inclusiveness is a good measure, but not the keystone. It's been said before that being a male feminist requires feeling uncomfortable, since one must recognize that giving up privilege so that others may enjoy the same rights and protections you have means you are not the center of attention all the time, and many things are instantly accessible with others included in the conversation.
This is probably where feminism gets the reputation that we hate men. Why? Because all the jobs available, once available only to men, can go to a woman instead if she is more qualified. Suddenly, opportunities that were so easily available before are not as available, and losing that privilege can feel like a smack in the face when you're not that special anymore. You're suddenly more like everybody else who don't look like you or uses a toilet like you. Oh darn, right?
Anyway, back to Ms. Watson. Good for her. I like seeing young women speak out as feminists. I'd have chosen Madison Kearney, instead, but I understand the star appeal for a campaign with larger goals.