Would it be a relatively straightforwards thing to extend the Ignore list to encompass entire threads started by the contents of the list, rather than just specific posts? I do realise that this might possibly be against the point of a forum in the first place, but after spending more time than justified (i.e. more than zero) reading the fatuous storm in a teacup about mystery coups in China, I was reminded that I have often thought that such a feature would save a lot of brain cells.
Yes, I do fully realise that I should just ignore certain threads from certain users, as they are practically guaranteed to be a waste of time. But sometimes I just can't resist pushing the big red button, just like how I sometimes cannot resist the "View Post" button on individual posts.