For mysterious reasons known only to themselves, but which probably involved either peyote or some long con infiltration plan, THQ's PR department decided that holding an AMA on 8chan's /v/ board was a brilliant idea that every would get behind. If you are confused about what 8chan is, it's the site for the kind of people who thought 4chan was too mainstream and moderated.
During the AMA, which included the head of THQ's PR and at least one other board member, the THQ people attempted to meme it up with the resident edgelords, with predictable results (there were also some false flags by idiots, but mostly it was THQ themselves talking about big anime tiddies). Cringe and embarrassment ensued.
When the effects of peyote worn off, THQ attempted a half hearted apology, which nobody is buying (generally because they still haven't bothered to remove any incriminating tweets 12 hours later). The corporate is going with a hard "no comment policy." Twitter is on fire. People are afraid just viewing screenshots of 8chan thread is going to get them v&.
TL;DR this is a worse PR fuck up than anything Anthem related, chiefly because EA managed to somehow avoid the CP minefield.