Since the web is based around single domains, the source runs behind those domains, this balkanizes what we see and who runs it, creating a winner take all dynamic. Unknowingly, the structure of the web makes it ideal to supplant public protocols for private walled gardens. Sure you can use a "standard" client to connect, but you are relying on the good of the owner, who can _pivot_ at any time.
If they initially said that they will be requiring sing-in to read comments, push app over browser, etc. it would be just fine (but then I suspect they would not have any quality content to monetize). Just my 2c.
So now you have a whole bunch of people doing a reenactment of Silicon Valley, only the actual site experience for users has basically not changed since 10 years now (except "corporate innovations" like nagging you to install their app so people playing startup have their hockeystick curve).
It's a common phenomena. Look to Strava or Patreon, perfectly successful businesses that are instead exploding headcount and spending like a cancer, while never actually changing the core experience (except for worse).
God, this one baffles me. I feel like you could write that website and app with 5-10 skilled employees and a handful more for support and administrative overhead, skim your 10% of a good chunk of all Internet microtransactions, and retire early. Then they go and nuke all their goodwill trying to milk every cent they can out of the process[1]. What the fuck? Just make a product people want to use and charge a fair price for it; payment processing with a small blog platform is not rocket science. No part of this requires 60 million dollars and 100+ employees[2].
[1] https://www.digitalmusicnews.com/2017/12/08/patreon-fees-con...
It's basically impossible to start a YT or Patreon or Twitter alternative without either accidentally or actively pandering to people who have been kicked out of the main competitor, which mostly happen to be neonazis and/or fascists.
As such, most alternatives will immediately have their main pages full of hate speech and nazi propaganda. Even if there is a part of the user base that just wants an alternative to the Big Thing for other reasons, it quickly gets taken over and drowned out. Finally, after some time, the site just gets labeled as 'The Nazi {Patreon, Twitter, ..}' and every member becomes guilty by association, the community is just pure fash, and sometimes even gets dropped by advertisers/payment processors after public outcry.
See: voat (full of hate speech, basically a shelter for all banned reddit communities), gab (actively pandering to alt-right), subscribestar (paypal dropped them after public outrage), ...
I think the only 'alternative' I've seen not evolve into this is Mastodon, and that's probably because of how openly anti-fascist the first adopters (and developers) were, and because they didn't need to turn any profit.
https://twitter.com/shl/status/1160923132984623106
You can already do subscription products, but it's not quite enough to replace Patreon. That's about all I need to start nudging my handful of patrons over.
The typical Silicon Valley Disruptor approach is to just wave away all responsibility except the absolute minimum the law compels you to do.
Also profits pay for non of the things you listed, profits pay for investors.
https://www.businessinsider.com/craig-newmark-craigslist-fou...
/snark since it's mostly invisible on the internet.