Unless you're willing to carefully curate a healthy community, allowing and reading comments from any idiot with a web browser is a losing proposition. The comments section on your local newspaper or TV station's website, or on YouTube, or on any site with high readership and low moderation is just a waste of time that does little than fuel one's misanthrophy.

Does this mean there's no such thing as open discourse on the web? Nonsense. But if you're not willing to set up an account or set up your own blog to back up your discourse with some sort of identity, your discourse is worthless.