Website comments: Direct only vs. direct and indirect (replies) as well?

Good evening, makers! I'm doing some research for a product I'm building, and I was wondering about the following: Website owners - you want to get comments from your visitors, right? Do you also want visitors to be able to reply on each others' comments or are you just looking to get direct feedback from your audience? This poll is also available on Twitter: https://twitter.com/paulglushak/...