It's like YouTube "Explainer" personalities, like Hank Green and Adam Neely. They do the kind of "learning theater" that makes you feel like you're learning something when you're actually just providing views and ad revenue. You'll come away from a video feeling like you gained knowledge, but:

1) there's a good chance it was subtly misleading (or just wrong)

2) you probably won't ever use the information in any meaningful way and will likely forget all relevant details in a few days

3) you almost certainly could have spent that time better actually doing or creating something - actually doing real learning and making real progress