I see that changes have been recently made.
The timing coincides with my inability to comment in most parts of the SE network, or even vote up or down on anything. Any click on a link to comment, or a button to vote, takes me immediately to the top of the page in the browser. I am unable even to click on a link to show more comments, for those pages where the comments were extended.
I have purged all cookies in my browser, and restarted it, opening only an SE page afterward, to no avail.
(I cannot even click on the "Review your question" button...but fortunately, pressing "Enter" in the Tags input field triggers the submit function--which is how I post this.)
Ctrl + Shift + J, but there are more details here.