While this may not be the exact same problem, I also have major issues with the curse website.
1. Rigistering was not possible for me in chrome.
2. 90% of the capchas are unreadable in all browsers, yes I understand you cant make them easy to read but they are just god awful.
3. Once I finally rigistered (in firefox) and comfirmed my email address I was told by the website (in chrome) that the account didnt exist.
4. Posting a comment at the addon page is almost impossible for whatever reason, I clicked the post button more than 10 times (while waiting for a few secs inbetween) and it finally showed up. Then when double checking if my question was showing (in another browser) the question was gone.
5. I cant use my curse accounts for logging into the curse website (wtf?), the account I use for the curse client doesnt work on the curse website and neither does the one I use on diablofans.
6. That leads me to the last point, why is my MMOC account not a curse account?