[barsonme]

Big distinction -- people are moderated for their content on Hacker News, not off.

If this speaker makes a racial slur he'll likely be removed from the conference. Inside the conference (much like HN) they're free to limit his speech. However, as was mentioned in the article, the conference does not and will not judge speech outside the conference, much like HN does not (to my knowledge) ban users for offensive speech outside HN.