The Intercept is a legitimate site co-founded by Glenn Greenwald. It has essentially the same reputation as Greenwald, it's truthful and focuses on certain issues to the point of obsession, but for fairly good reasons.
As far as not answering the question, the correct response to "Will you ever sell your services to make a registry for Muslims?" is the same one as "Would you build baby mulching machines in Toddler sizes?" or even just "If Trump asked you to make your workers wear militaristic uniforms with jackboots, would you do that?" - the answer is always going to be "Fuck no", not "At this time we'd prefer not to answer" or no answer at all. That's regardless of whether the questioner is from the New York Times or Breitbart.