The Onion (and AV Club) sold itself to Univision. Univision bought Gawker after it imploded and merged them the two together. Univision made The Onion and AV Club use the Kinja software that Gawker is known for, renamed the company GMG (Gizmodo Media Group) or something, and then Univision sold the entire thing with The Onion and AV Club to a Private Equity firm, Great Hill Partners and renamed it G/O Media.
So basically, they got fucked over.