I think Mad Thinker Scott has analyzed the issue pretty well already, so I don't think I have much to add on the whole "Wizard is for Men" deal.
I'm just surprised anyone cared that much.
Frankly, I'd be willing to bet that a large percentage of the people commenting never read so much as a single issue of the thing before they added the "for Men" label; that'd explain the shock and outrage now over stuff that's been going on since well before they made it "official". Putting it on the cover just made it more visible and blatant, and now everyone's all "whaaaa but how dare they", and like I said in the comments for last post, it's cycling through responses to responses to responses (yes, much like this post).
I'm also a bit mystified by the tone of some comments on the situation, as if Wizard was somehow obliged to be sex-neutral and this is a huge betrayal of... something, I dunno what.
Personally, I found the argument over "if you don't have a vagina you should step back" to be a lot more interesting and relevant. (But everyone else seemed to be discussing that one just fine, again, nothing much for me to add.)