Should Influencers prove they are experts in their fields before posting about it?

They are people with an interesting personality that people choose to watch.

If you view it as entertainment, fine. But I don't really get why people believe them on many different things. I suppose they trust their judgement. When you have millions of products to buy, someone telling you which ones to get, or giving advice, it looks helpful. But you don't know them or their background or their biases/ knowledge, etc.

Good con men also have engaging personalities that suck you in. I am not saying they are con men, but just that certain people have a communication style that people find engaging and trustworthy.

You can learn it, interrogators use it, but it is psychological manipulation. It is possible some influencers do it consciously, but some probably don't. They often cultivate carefully curated online personalities and an image.

Anyway, it says as much about the people following them as about the influencers. If they declared their interests, like MPs, or declared their background so you could judge how much weight to put on what they say, I can't see it would be bad.

And of course, just because someone is a expert on one thing does not make them an expert on everything. Also, regular people can also have very food ideas abe views. The thing is to use critical thinking and check what people say, but most people don't. 

They are people with an interesting personality that people choose to watch.

If you view it as entertainment, fine. But I don't really get why people believe them on many different things. I suppose they trust their judgement. When you have millions of products to buy, someone telling you which ones to get, or giving advice, it looks helpful. But you don't know them or their background or their biases/ knowledge, etc.

Good con men also have engaging personalities that suck you in. I am not saying they are con men, but just that certain people have a communication style that people find engaging and trustworthy.

You can learn it, interrogators use it, but it is psychological manipulation. It is possible some influencers do it consciously, but some probably don't. They often cultivate carefully curated online personalities and an image.

Anyway, it says as much about the people following them as about the influencers. If they declared their interests, like MPs, or declared their background so you could judge how much weight to put on what they say, I can't see it would be bad.

And of course, just because someone is a expert on one thing does not make them an expert on everything. Also, regular people can also have very food ideas abe views. The thing is to use critical thinking and check what people say, but most people don't.