Youtube is different from the web. You can't just be informative you have to be informative and entertaining.
There are lots of channels that manage that, sometimes it's fun to watch a knowledgable person explain something or review a product purely out of entertainment even if you will never buy it.
If people are informative an audience will find them, if they're entertaining and audience will subscribe to them.
Whatever downsides youtube has for a creator is vastly outmatched by the upsides for most creators.
There are lots of channels that manage that, sometimes it's fun to watch a knowledgable person explain something or review a product purely out of entertainment even if you will never buy it.
If people are informative an audience will find them, if they're entertaining and audience will subscribe to them.
Whatever downsides youtube has for a creator is vastly outmatched by the upsides for most creators.