Kw's in the comment section effect rankings?

[Paul]

No, they don't effect. Its not relevant whether are you using Disqus or not, or whether your comments are moderated or not, or even they are providing do-follow links instead of no-follow links.

Yeah, ofcourse the outgoing do-follow links will have link juice almost equaling to nothing but that don't effect the host page's (which is your page in this case) rankings.