I often see this defence of, "it's up to the reader to decide!" pop up in circumstances like this.

The vast majority of the time it's used to justify either lying or repeating lies.

What exactly is the use of a website apparently designed to give equal weight to lies and facts? How does that benefit anyone?

The world doesn't need yet another journalism-related resource that repeats what other people say instead of attempting to actually find the truth. But doing the former is massively cheaper and easier than the latter.