Buying out of the top 50 coins literally means buying the shittest coins ever. I would never try this unless I am already a billionaire looking for where to waste money, I can then head to your advice and buy the coin you are shilling.
He actually gives the worst advice to ignore investing in top coins, so top coins can never make a profit of up to x1000 but top coins have low risk for scams, but new projects only experience significant gains when getting support from the community to create new hype but it is very high risk for long term investment, so I will not be interested in investing in new projects because 80% of new projects are included in the scam list.