It has benefits whether you're a blogger or a commenter. If you're a blog commenter, for example, you can keep track of conversations that you're having on other blogs much better because when people reply to your Disqus comments you get notified so you can reply again or just say thanks.
This doesn't happen on many other systems. Unless you keep going back to all the blogs you've been commenting on, you're bound to miss some replies to your comments. The bloggers in question may end up thinking you've "dropped the ball", so to speak, or that you were just commenting to drop your link.
If you're blogger it's great too because you can keep out the spam. And you can use it to find many other great blogs through your dashboard ...
So I'm looking forward to getting more discussion around my posts. This new commenting system will help that. It will also encourage me to do more commenting generally. That's something I've neglected for a long while. Basically, I have only had the time and energy to write posts occasionally here. But I know from experience that commenting on other blogs is probably the best way to get some interaction happening on your own. So I really should get into that.
My only misgiving is that by installing Disqus I've now erased all the previous comments from the posts. (They haven't been deleted entirely, of course. They're just not visible to readers.) There weren't many, but I feel a bit bad about it because people took the time to offer their thoughts. So, sorry to those people. Please be assured that I did appreciate your contributions.
Any other bloggers using Disqus? If so, what are your thoughts on it?