Twitter notwithstanding, threats and harassment are not 'trolling', I don't think.  Its interesting to read the article about sexual assault and how Canada has some of the most progressive laws, but is unwilling to use them.  I think the same applies online.  Many of these cases are outrightly illegal and there should be an effort to catch those people and at least shame them if not charge them.

    Thats different than trolling. This is messed up people verbally assaulting women.  Its criminal and should be prosecuted.  And I've seen a lot of cases where police clearly have the time to investigate these things.