Regarding your point b: Heavily disagree. Even ignoring HN's seeming love for Kagi, surely you must have noticed the narrative about how AI is fixing search? People asking ChatGPT or Bing instead of googling things? Why would they do that if they were satisfied with Google? Also, Google search quality worsening has been a common news headline for years now.
EDIT: Two people have emailed me, so if you are reading this you are too late.
And yeah, to the GP: Understand that fans of paid services like Fastmail and Kagi aren't shills... we're just... enthusiastic about stuff that's just... so much better. And yeah, there's probably some sense that for paid services to take hold for things like this, more people coming to it is a good thing.
It only falls down if you care about taste and quality.
Honestly it was odd to read an article about leaving Google search as if it was a momentous thing. $10/month or whatever is pretty minor in the grand scheme of things.
It's been over 18 months I'm a paying customer and have absolutely no regrets, I cannot stand Google search anymore after being used to Kagi's results and tools.
Anecdata, and I have yet to switch myself, but Google has gotten noticeably worse over the past few years and I’ve been considering it.
https://gizmodo.com/google-search-results-are-getting-worse-...
Not having half page of the results with ads is also great.
And in addition, results are not only from Google/Bing and other sources but they also use their own index.