Assange wasn't really a threat on his own. He was merely an outlet for others (Chelsea Manning, Russian propagandists). The question was whether he encouraged others.
Snowden showed that leakers didn't need Wikileaks for Chelsea Manning-like releases and the Russians have just switched to directly releasing on Twitter.
>the Russians have just switched to directly releasing on Twitter.
Or more frequently just making shit up. Enough people will believe it anyway if they're politically inclined to do so, plausible details are not a required element.
Snowden showed that leakers didn't need Wikileaks for Chelsea Manning-like releases and the Russians have just switched to directly releasing on Twitter.