People really worry about fake video and images and whatever but I have to say, the correct heuristics both already exist and have existed for a long time:
1. Anything on the internet can be fake
2. Trust is interpersonal, and trusting content should be predicated first and foremost on trusting its source to not deceive you
This is imperfect but also the best people ever really do in the general case, and just orders of magnitude better than most people are currently doing
The issue isn't models like this, it's that people are eating a ton of information but have been strongly encouraged to be credulous, and a lion's share of that training is directly coming from the tech grift industrial complex
I wouldn't even say this is the most compelling kind of tool for plausible-looking disinformation out there by a long shot for the record, but without actually examining why people are gullible there is no technology that's going to make people accepting fiction as fact substantially worse, or better, really. Scams target people on the order of their life savings every day and there are robust technologies and protocols for vetting communications, but people have to know to use them, care to use them, and be able to use them, for that to matter at all