This is a really great article.
The author laments content creators trying to bring viewers into their discord or twitter instead of personal website but conveniently ignores the fact that people are much more willing to go to and likely to return to sites they already visit.
I don't think content creators are especially happy to be reliant on youtube, or twitch, or whatever other site they're on. But the reality is that's where the people are. When creators have left those platforms they've consistently lost the vast majority of their viewers, because the reality is that there are plenty of other creators on the platform for viewers to migrate to.
Everyone lives in someone else's kingdom, except those people who own kingdoms.
Articles like these, repeated on HN year after year because they represent popular fantasies (and are thus always voted to the front page), are universally misleading and wrong.
Challenge someone to list how they plan to build a successful business, starting from scratch, outside of existing kingdoms. You'll get a lot of evasiveness in response in terms of answers.
It applies to online businesses as well as offline businesses.
Need advertising? You're in someone else's kingdom. Need marketing? You're in someone else's kingdom. Need cloud hosting or services? You're in someone else's kingdom. Need access to the Internet? You're going to span numerous kingdoms that you don't own. Need to process payments? Again, multiple kingdoms you don't own. Need a domain or access to an app store? Kingdoms you don't own. Need retail goods to put in your store? Numerous kingdoms you don't own. Need manufacturing for your widget? Numerous kingdoms you don't own. Need delivery services beyond local? Someone else's kingdom. Need utilities for anything? Someone else's kingdom. Need government licenses for anything? Someone else's kingdom. Need to travel at distance, by train or plane, for sales or similar? Someone else's kingdom. Need teleconferencing? Very likely someone else's kingdom. Need to sell something online? Someone else's kingdom (most likely; even if you just use Shopify).
And on and on and on it goes. The alternative scenario of trying to do everything yourself is hell.
A better premise would be: be careful where you build your castle, and consider putting it on wheels.
I'm not about to share that information, sorry.