Twitter Inc. reinstated the account of Guy Adams, a journalist for the Independent newspaper, after he had been kicked off for what Twitter said a violation of its privacy guidelines for publishing the email address of an executive from Comcast Corp.’s NBCUniversal. “Our interest was in protecting our executive, not suspending the user from Twitter,” an NBC spokesman said Tuesday. “We didn’t initially understand the repercussions of our complaint, but now that we do, we have rescinded it.”