Probably because the initial poster couldn't back up his/her post. The links this poster cited lead to dead ends. I couldn't tell if it was a posting by a troll or an honest mistake. I have to say that I never trust bits of news on the USA site unless they come from USA or they're confirmed by other sources. Whatever the reason, there's not indication anywhere that Mr. Noth is returning in any way for any size of role for the last LOCI season.
That kind of thing annoys the heck out of me. It's the main reason the rumors surrounding Mr. D'Onofrio's "collapse" of s few years ago went wild. And I like many of the people at the USA board, but there is a tendency towards hysteria there.
Patcat (who must confess to some hysterical tendencies herself)