It's not dumber. You can verify this on their models with any prompt you ran at 0.0 when it first came out, I did. It's the exact same model run the same exact way. They've repeatedly confirmed this.
So I absolutely agree with this. And yet this meme persists. I wonder what's creating the feeling that it's "dumber" in so many? Perhaps they're just noticing the limits that always existed previously? I'm not sure, and am interested in others thoughts on it.
In comparison, Bard and Claude are getting better with time.
If you ask GPT to give you the same thing now, it wont , no matter how hard you try.
That's like hard evidence for me that they've dumbed it down.