To me, the measure is always "What can you actually do?" So, if they fail the show me research, and are all talk, and are popular or wealthy, they are usually grifter con artists, which is also a skill. Influencers often also have a skill. If they didn't, people wouldn't actually follow them in droves.
They often use similar rhetoric, sometimes the Barnum effect is used on people, or love bombing, isolation, gas lighting, and more with a complete lack of humility. They will promote their own materials, and themselves, while bashing others. They often make claims that they can see through some veil and that you have to join or pay to learn how. They usually have some conspiracy nonsense that is too close to reality for comfort, but draws in people on the fringe. They recruit, and they spread whatever they are into like a disease.
These are all big red flags to people who want independence and freedom, and want to control their own fate and powers.
The main characteristic is control and focus. They will claim things like "my way is best" or "I know some truth" but will have all sorts of excuses when put on the spot to demonstrate anything they claim. They are all grifters, and greed pigs.
Don't be a lemming.