You might be able to use https://hn.algolia.com/ https://hn.algolia.com/ which searches every comment/submission from HN. Just paste in a wikipedia link to see

You might be able to use https://hn.algolia.com/ https://hn.algolia.com/ which searches every comment/submission from HN. Just paste in a wikipedia link to see if it has already been submitted, then click to the comment section.