Nobody's been hacked (to my knowledge). If you're referring to this thread, all of the "hacked" accounts are just people playing along with the joke, which I will ruin here to allay concern:
RealHumanNeo is an alt account by neo_ar, a very long-standing community member, famous for the Riscy Business project. He's been using this account and its goofy persona for messages here on the forums and for his jam project, which is in fact a real technical project, plus Domino's Pizza.
We found the joke funny enough at the time to continue in that one forum thread, with a few of us posting comments in a similar tone and style. Since Neo has maintained the persona across the site though, and since many people aren't familiar with Neo and his personality, I understand that it doesn't always read as a joke.
Also, as for how we're handling spam - we actually have a more robust system in place than ever before. If a user has never posted before, they are essentially "shadowbanned" and their posts are only visible to themselves and site admins. We have a feed of these posts and can manually approve these users or flag them as spammers and delete their account. Already we've spared you from a few posts about escorts in Dubai, and cricket players in India. 🙂
Please do let us know if stuff slips past our filters. But in this case it's not spam.