Cherry picking incidents involving the actions of disturbed individuals to attempt to smear a multifaceted movement is intellectually dishonest. That's like claiming all Muslims are terrorists because some Muslims are.
That is not to say there there is no benefit to considering the rights of men or the problems that men face with issues like violent attack or custody disputes.
"Disturbed individuals"? Did you read the articles? The people being describes are the leaders of the "movement", like Elam. The "movement" obviously encourages the behavior being described -- meanwhile, groups like CAIR work hard to address the popular image of the terrorist Muslim. Where is the CAIR of "men's rights" I wonder
There are some Muslim leaders that express disturbing things as well. Once again, this does not make them the voice of mainstream Islam. If you actually visit a large men's rights community, like http://reddit.com/r/mensrights, you'll find that some women participate in discussion as well and the men are not the rape-happy bugaboos that many paint MRAs in general to be.
I read the first article you linked to, but couldn't find any reference to rape threats by Men's Rights Advocates. That some women receive rape threats on the internet is an entirely different matter. There have also been episodes of feminists faking such rape threat comments. Let's stay on the sane side.
In any case, I only know Karen Straughan (Girl Writes What), who seems very reasonable to me. Not sure how she is associated with A Voice For Men, but she did call for donations for them recently.
And, let's step back a moment: did animus9 write any death threats to women, or did he indeed write anything about men's rights before being accused of being an MRA member? Then why are we having this discussion again?