Is the .to (Tonga) domain completely rogue and should be removed?

So what you are saying is that Barry has a perfectly functional
method of dealing with the problem and all the rest of this is a complete
and utter waste of our time.
Mr Sobol's comments doubly so, as they add no new information.

RBL doesn't work? Abuse reporting doesn't work. Strong claims, lets
see some proof?

I was referring to Barry's solution (disabling whole TLDs) versus DoS
attacks. *Neither* of those actions constitutes a solution to the problem
being discussed. I apologize for not being clearer. Again, as I mentioned
before, I am not arguing the effectiveness of the RBL.

*Sometimes* it works.

Sometimes it doesn't.

It really depends on how determinedly rogue the spammers involved are.

If they just switch from domain to domain RBL doesn't help, nor does
abuse reporting.