What are some Wikipedia pages that cite Quora as a source?

Tom Morris already gave the search giving the answer. Note links on Talk and User pages are not restricted to "reliable sources". On article pages, you can write anything but other editors can challenge or directly remove. Disagreements between editors quickly resort to quoting Wikipedia policy, and individual opinions not from professional journalism are given low weight as sources. Nevertheless, if a Quora answer seems good enough to enough editors, it may survive challenge unless the opposing editors really push it. Many of the linked Quora answers have likely not been challenged by anyone.