What's the outcome of Manwin vs their tube "cybersquatters"?
 

Have they succeed or failed?

Okay - just checked the domains from the news - most of them are suspended/inactive

The latest suit asks for $2.4 million in damages against at least 10 John Doe defendants who operate YouPorn-Deutsch.com, YouPornHard.com, YouPorn-Nederlandse.com, Free-YouPorn.com, RedTube-YouPorn.com, UPorno.com, YouPorn.Milf-Fucking.info, YouPorn-Beurette.com, YouPornCams.com, YouPorn fr.com, YouPorn-fr.net, YouPorn-HQ.com, YouPornHubSexe.com, YouPornMobile.corn, YouPorn oz.corn, YouPornSexy.com, YouPorn-X.corn, YouPornYourself.com, YPLF.com, Tube8.org, Tube-8 .info, Tube8Sexy.com, Tube8-fr.com and xHamsterTube8.com.

Wonder if they would sue me if I got Womanwin.com.

Likely not. This is taking two generic untrademarkable names and putting them together. I would say it wouldn't be likely they would pursue.