My favorite tell is when a write-up starts with a verbose explanation of given knowledge on a subject. Yes, we all know what 'World Wide Web' and 'Internal Combustion Engines' are.
Whether it's text or video, there will always be a "Let me tell you about that time when I was on vacation" before the damn pot roast recipe or "Subscribe and play Raid Shadow Legends" followed by a 15 min padding.
No “we” all don’t. Ask anyone who works support how fucking stupid the general population is about shit they use daily. Let alone stuff they heard years/decades ago. Seriously. Just start asking people to point to “the computer” and see how many point at the monitor even when it’s clearly an 80” wall hung TV.