I am a big fan of no comments, actually, especially when it means reducing the overhead they demand, and especially still if the comments are few and low-value to begin with. And the idea of Disqus putting ads in them now is a big turn off for me.
I think it's better to reduce both tech and human resource overhead on comments as much as you can, and make the barrier to entry as low as possible; i.e., little to no need for signing up with something to leave a comment.
For CSF articles, as example, we don't use use comments via the CMS (too much tech overhead) or some commenting system (an account barrier), rather we add a link at the bottom to the associated post in the CSF G+ page and let people rant and rave their. Of course, G+ is not everyone's cup of tea, but we find the advantages from the lower overhead far outweigh what little comes from comments in general. The barrier to access is much lower, and Google provides some pretty nice tools for moderation. It's also a lot more dev and mobile friendly that way too.
The only thing I'm thinking we should do differently is share those G+ Page posts in the community here too, because there are way more members in this community than there are following the CSF Pages, so I don't think those posts get seen as much. I need to talk to our community manager on that, but it seems sensible to me at this point.
Anyway, to each community it's own method. ;)