My mention of the TSLA share price was before TSLA split. Just double you highest price and you'll see a $763 as the highest price.
The guy on Facebook was an idiot (not a total idiot, he was trading covered calls), and he was the admin.
Feel free to read it a second time but you might browse the entries in this list: https://thegodoftrading.medium.com/list/broken-record-options-14f25419a4f1.
There I've simplified the presentation to basically this sentence: "The OPEN SIGNAL is clear and easily executed. If the call options are above their open, buy those; if the put options are above their open, but those." And I still doubt anyone believes it.