The entire important part of the article, i.e. the headline and why it is something that Ars would be reporting on.

Your objection is silly. They're not reporting on that thing that everybody knows about, they don't know anything special about, and is not part of their beat. Instead they're copying from reddit, badly.

edit: I've gone through the article, and I guess I'm dumb. They're using a Reddit thread as an excuse to recount a story that they have no part in and no expertise to report on. A fake Limewire story is supplying the linkbait of an excuse for a tech website to do a "Trump bad" story. Ars is fully owned by Condé Nast.

They didn't know it wasn't Limewire because they didn't give a shit about the Limewire part.