Hi oguy,
It seems like Comodo Secure DNS is playing a role with this issue.
Try disabling ‘malware domain filtering (Comodo Secure DNS)’, found under privacy in the advanced settings.
Clear your browsing data, relaunch Dragon and try the site again.
I’ve had a similar issue at the ESPN website and this solution didn’t work. The comments on articles at ESPN use a Facebook account and I couldn’t get them to appear no matter what I tried. Finally, when I removed the DISCONNECT add-on the comments started appearing.