I subscribed to Kagi a month ago.

It's great.

I'd love for BlueSky takes a subscription model, too, so we don't have to think about advertising or sustainability or all that jazz.

Also means the company's interests much more closely aligned with users interests, rather than advertisers interests.

That's why I moved to a paid mail service myself. I used to have a free one, but it was always lurking in the back of my mind that they'd be selling me to advertisers. (Plus, the service sucked)