Normally I hate that sort of stuff but there's nothing in that article you linked to that I can disagree with. It covers a lot of inappropriate things that men might do despite having the best intentions, trying to identify with someone who is in a situation you cannot identify with for example, and sometimes we do need these things spelling out to us.
It sounds a bit arrogant for me to say, 'oh, that's what I do anyway' but I wasn't born with an instinctive understanding of these things. It's something you have to put some actual work into, something you have to learn by fucking up a great many times first and becoming aware of how and why you've fucked up.
e2a: I still don't feel like anyone's ally though, I don't think we should put any man into a category that suggests his work is done and his capacity to harm women has been negated. I think we should see it less as a fight to get into the club called 'allies' and more as a fight to stay out of the club called 'cunts'.