I feel that the article doesn’t go into specifics of how consensus is incentivized. It provides examples which sounded great but not how the system actually works. In short I was a little disappointed.
There is source code provided so it can be figured out. I suspect that it favours consensus by progressively hiding comments that are divisive (i.e. a large number of both up and down votes) and increasing the number of statements that get large numbers of up votes but relatively few down votes.