Twitter can't just hold it's hand up and say 'its too hard' when it's people being repeatedly threatened with violence. It's their system and they seem very happy to add restrictions or change functionality when they benefit from the change (see the various ways they've limited the ability of third party clients to connect to their service over time). They either fix it, or people will walk away leaving only the trolls and idiots. At which point it will die and they will all be out of a job.

They make twitter a place sane people would be willing to participate in, or they fail and eventually die. It's that simple.

Ms Criado-Perez, who had appeared in the media to campaign for women to feature on banknotes, said the abusive tweets began the day it was announced that author Jane Austen would appear on the newly designed £10 note.

I think that there should be women on the notes but not politicians. So why get upset at such a suggestion?

Aside from anything, there's a woman on every single banknote already and has been for 60 years.

MPs 'plan to question Twitter over abuse'
http://www.bbc.co.uk/news/uk-23507680

The clueless questioning the careless.

Sara Lang, a social media manager for US-based campaign group AARP, said she too had received a bomb threat, but police in Washington DC had since confirmed that her house was safe.

Now these cases are not jokes. So they should be treated as attempted murder, with really long sentences.

What is it with the misogynistic attitude on the web?