If someone is not a financial advisor and still go live on Youtube or Twitch to talk about how they make money investing in a project or two what does that make them?
If you are an expert in any area, you don't have to show yourself on Youtube. Mostly successful people like this want to have spare time, freedom and they can share their knowledge when they want but not with any regular basis like 1 video daily, weekly.
Especially if you are free financially, very successful financially, you don't waste time to make videos on Youtube.
Exceptions are only if you have love with videos and obsessed with sharing knowledge, technical support and advice to community. You want to give away your knowledge and if you are clever, you can realize that such Youtubers will mainly share video about knowledges, technical things than shilling projects.
It is very easy to watch videos and feel that Youtuber is shilling a project but not focus on knowledge. If you watch that Youtube channel playlist and find more similar videos, let's ignore that Youtuber.
I only follow one cryptocurrency Youtuber, Andreas Antonopoulos:
https://www.youtube.com/channel/UCJWCJCWOxBYSi5DhCieLOLQ