How does layout impact on correctness of Question Answer sites?

The first question shown tend to capitalise points on all the others. How much a grid layout impact on correctness of an answer? e.g. https://www.quora.com/Is-Google-the-most-powerful-company-in-the-history-of-mankind First answser: 550K+ views Second answer: 33K+ views Third answer: 4K+ views Quora is different than Stackoverflow, however I question which studies may find evidence that the number of visualisation grant correctness to answers in Q/A sites, introducing a bias due to network effect.