You are measuring only the inconvenience you have directly experienced. Not the impact on wider society.
Whistle blowers, journalists, religious apostates, people unsure about their sexuality all rely on annonimity on the internet.
I can't find the Times article but government officials have clearly stated that this isn't about protecting children, it's about controlling political discourse online. They are now floating the idea of forcing YouTube to give "trusted" public service news sources prominence. Again to control the discourse. That includes the BBC, which I personally have completely lost trust in.
https://www.gov.uk/government/news/plans-for-prominence-of-t...
>Whistle blowers... all rely on anonymity
Sure - open an email not in your name, write to papers not in your name, whistle blow away. It still works. I've got various anon accounts - no problems so far.
Not sure about the trusted source bit although the likes of x and youtube seem to do that anyway a bit - give more prominence to medical experts than antivax cranks for example.