People selling you courses and community are mostly grifters.
The content here has nothing to do with YC in particular, and makes a few interesting claims:
1. YC founders are all young, impressionable 20yos
2. YC encourages you to make up problems to solve
3. That an exit less than a billion dollars is a failure
All of which are easily dismissed by watching actual content from YC.
4. That a 1.25% chance of creating a company worth more than a billion is a bad outcome
Honestly what an opportunity!