I don't disagree, what I disagree is with a blocking action before they actually come and act in bad faith in a way that is difficult to contain. I see blocking an instance as an absolute last resort, after other approaches have failed. I do not want to block an instance because it has a potential to do something, a high likelyhood of doing so, or because it has done it to some other instance. I understand that this is an unpopular view, and that many prefer a proactive approach.
I can see that same issue when I clicked the link, I am not sure why. Worth looking into it. But refreshing the page fixed the button for me, does it do it for you?