I'm staggered by some of the replies in here. The reason the guy is newsworthy is because the President took his work and posted it out there for the world to see. That makes him newsworthy. Yes, all he did was make a meme (oh, and a whole bunch of super racist posts, but so what, that's no big deal, right?), but once Trump tweets that out, the story of where it comes from is newsworthy. The fact that it could destroy his life is because of all the other shit he did. I don't think most people would feel like creating one GIF is such a horrible misstep, but that's not why he would be in trouble if people found out his name. He'd be in trouble because he's done tons of other horrible things online.
So, the narrative that "all he did was create a GIF!" isn't true at all. Additionally, it's time people learn that online interactions and posting can often be traced back to you, and maybe it's time to adjust your actions online accordingly.
We're talking about a national news organization here, not just "anyone." It's a matter of the principal here. News organizations shouldn't be going after people who make memes. Period.
Once Trump tweets that meme out, it's news. It'll be in the national archives one day, it's an "official statement from the President", it's news. The guy may not have intended that, he may only have wanted two other people to see it, but the President tweeted it, it's news. The origin of it is news (especially since Trump has a history of posting stuff from really ugly sources). And again, he really wouldn't have much to worry about if it was the GIF. It's all the other shit he did that will get him in big trouble if his name comes out.