Maybe I'm just being a pain... but why is it necessary to have an entirely different system to comment on the questions than to comment in the forum? I don't want to register with "Disqos" which means I can't chat about the specific question topics.

 I didn't want to register with "Disqos" either...

Agreed. They should just use this comment system on the market pages too.

Is Disqus making money via new sign-ups? (I already had a disqus account...)