Yet Another article about comments.
I wrote a post on why i decided to go comments off til the beginning when i opened the site.
Also the verge has written a post on the matter:
They make for a great tool when it comes to communicating with those who visit your website, but all too often that same discourse can be ruined by what we’ve all come to know as trolling. Malicious intent has a way of overwhelming intelligent conversation, and this has caused a few popular sites in our industry — John Gruber’s Daring Fireball chief among them — to avoid on-site discussion altogether.