Earlier quoted context omitted.
And my terms of service read 'and if you change your terms of service in a way that I don't like I will disable your plug-in and I'll bitch about it'.
That doesn't make any sense. You agreed to their terms of service and now you're complaining because it doesn't match your ideals. Disqus is a great service provided for free, what did you expect?
Terms of service are a fig leaf, how you act is what matters and these actions are not acceptable, especially not for an opt-out that wasn't there when I signed up.