Two points. It is not easy to stop bullies by blocking them. Changing emails and phone numbers can sometimes be very difficult in terms of notifying all contacts.
Secondly if people are not comfortable in being identified for what they say, there is a fair chance they should not be saying it. People should stand up and identify themselves to be respected. Few people respect those who remain anonymous.
In dealing with MPs to influence government we have , over 25 years never found anyone harrassed or persecuted. All give their names to the politicians and that is respected. Governments take notice of those who are open, ignore those who hid behind anonymity.
However, we are not here talking about anyone publicly identifying themselves except for a police or crime investigation to nail the bully.

"Secondly if people are not comfortable in being identified for what they say, there is a fair chance they should not be saying it. People should stand up and identify themselves to be respected. "

That depends on how much you trust those with differing views to behave ethically and how much power they have. For some it may mean a problem in future careers if views expressed online are readily traceable by future employers.

For others dealing with government agencies in areas such as Family Law and Child Support it could make life even more difficult.

I suspect that if the government really wants to know who I am it would be relatively easy for them to track me down, at the same time I doubt that those details are currently stored in a commonly accessible database somewhere linked to a variety of departments to be checked by a simple lookup against my real world details.

There will probably be cutbacks at my work (a GOC) in the next few years while at the same time CSA requires me to at least maintain my level of income, not sure I want to have to be quiet on a range of topics in case something I say here moves me up someone's list for who could go.

Who would pay for your system? Would it be user pays? Easy to see that becoming yet another revenue stream.

We don't need more government monitoring and intrusion, governments have a habit of taking any excuse to intrude on freedom farther than is justified by the original reason.

R0bert