I don't know what your operating definition of "grifter" is but for me, a grifter is not a company that delivers a product which gains a large adoption and mindshare (ChatGPT) and essentially sets the world on fire. (not an opinion on Altman specifically but OpenAI at large)
My definition is someone outright lying that gpt-2 was agi that should be regulated just so they could raise more money for the next round of training.