For those who are having issues leaving comments with HTML in it... I know there is still an issue and am looking into it. Until I have it resolved, I've disabled that feature all together to avoid confusion.
Update: I think I've really figured it out now... and it should be working again. Feel free to try to include HTML in the comments if you so please. And let me know if you still have issues.
Disclaimer The opinions expressed herein are my own personal opinions and do not represent my employer's view in anyway.